diff --git a/ChangeLog.md b/ChangeLog.md
index 88ea806..a8861c2 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -9,6 +9,7 @@ The format is based upon [Keep a Changelog].
 ### Changed
 
 - Migrated CI builds to run in multiple distro containers.
+- Improved virtual mouse motion to use a smoother approach, as well as allow an isometric speed calculation. This change deprecates the old `Mouse.Speed` configuration option and replaces it with a Sensitivity percentage option.
 
 ### Fixed
 - Addressed meson build bugs found in v0.3.3
diff --git a/daemon/meson.build b/daemon/meson.build
index 3f0b00a..ae8ac36 100644
--- a/daemon/meson.build
+++ b/daemon/meson.build
@@ -32,9 +32,10 @@ x52d_sources = [
   ]
 
 dep_threads = dependency('threads')
+
 # Comm sources are compiled into x52d (same as Autotools); libx52dcomm is only for x52ctl.
 x52d_linkwith = [lib_libx52, lib_vkm, lib_libx52io]
-x52d_deps = [dep_pinelog, dep_inih, dep_threads, dep_intl]
+x52d_deps = [dep_pinelog, dep_inih, dep_threads, dep_math, dep_intl]
 x52d_cflags = []
 
 exe_x52d = executable('x52d', x52d_sources + libx52dcomm_sources,
@@ -59,7 +60,7 @@ test('daemon-communication', files('test_daemon_comm.py')[0],
 x52d_mouse_test_sources = ['x52d_mouse_test.c', 'x52d_mouse.c']
 x52d_mouse_test = executable('x52d-mouse-test', x52d_mouse_test_sources,
   include_directories: includes,
-  dependencies: [dep_pinelog, dep_cmocka, dep_intl])
+  dependencies: [dep_pinelog, dep_cmocka, dep_intl, dep_math])
 
 test('x52d-mouse-test', x52d_mouse_test, protocol: 'tap')
 
diff --git a/daemon/x52d.conf b/daemon/x52d.conf
index b6a11cb..bf6e464 100644
--- a/daemon/x52d.conf
+++ b/daemon/x52d.conf
@@ -82,12 +82,44 @@ LED=128
 # Enabled controls whether the virtual mouse is enabled or not.
 Enabled=yes
 
-# Speed is proportional to the speed of updates to the virtual mouse
+# Sensitivity is the sensitivity percentage of the virtual mouse. This
+# replaces the old Speed option, and is a percentage value by which to
+# scale the input. The sensitivity can vary from 10% to 500%.
+Sensitivity=100
+
+# DEPRECATED: Speed is proportional to the speed of updates to the virtual mouse
+# This used a calculation with delays and multiplication factors to simulate
+# the mouse moves, but it felt choppy at lower speeds.
 Speed=0
 
 # ReverseScroll reverses the direction of the virtual scroll wheel
 ReverseScroll=no
 
+# Isometric mode controls if the mouse movement is computed based on
+# both X and Y movements. If enabled, the behavior is similar to the
+# mouse nubs found on some laptops. Otherwise, the X and Y movements
+# are independent of each other.
+IsometricMode=no
+
+# Curve factor controls the speed curve in an exponential manner, so
+# that the user can get finer control at the lower end of motion, while
+# increasing speeds at the upper end. Values range from 1-5, with the
+# following descriptions. Values are clamped in this range.
+# 1: Linear motion - no curve
+# 2: Soft curve: slight dampening in the lower ranges
+# 3: Standard: Feels like a Thinkpad
+# 4: Precision: heavy dampening in lower ranges, high speed elsewhere
+# 5: Aggressive: "sniper" mode in the lower rnages, "flick" elsewhere
+CurveFactor=3
+
+# Deadzone is a configurable value from 0-11, with 0 being no deadzone
+# and the deadzone size increasing with increasing values. This is useful
+# when there is a loose thumbstick and you want to restrict the motion
+# when there's no user input. A deadzone of 0 is perfectly fine for a
+# new joystick, but keep in mind that the higher values will require
+# you to push more to get any motion out of the virtual mouse.
+Deadzone=0
+
 ######################################################################
 # Profiles - only valid on Linux
 ######################################################################
@@ -109,6 +141,6 @@ ClutchLatched=no
 
 ##################
 #X52 Input Servic#
-#Version 0.2.2   #
+#Version 0.3.3   #
 #OS: Linux       #
 ##################
diff --git a/daemon/x52d_comm_internal.c b/daemon/x52d_comm_internal.c
index 3d67c33..6c06de4 100644
--- a/daemon/x52d_comm_internal.c
+++ b/daemon/x52d_comm_internal.c
@@ -54,7 +54,7 @@ static int _setup_sockaddr(struct sockaddr_un *remote, const char *sock_path)
     remote->sun_family = AF_UNIX;
     /* We've already verified that sock_path will fit, so we don't need strncpy */
     strcpy(remote->sun_path, sock_path);
-    len += sizeof(remote->sun_family);
+    len += sizeof(*remote) - sizeof(remote->sun_path);
 
     return len;
 }
diff --git a/daemon/x52d_config.def b/daemon/x52d_config.def
index 3ba713b..7517e2a 100644
--- a/daemon/x52d_config.def
+++ b/daemon/x52d_config.def
@@ -71,13 +71,26 @@ CFG(Brightness, LED, brightness[1], int, 128)
 // Enabled controls whether the virtual mouse is enabled or not.
 CFG(Mouse, Enabled, mouse_enabled, bool, true)
 
-// Speed is a value that is proportional to the speed of updates to the
-// virtual mouse
+// DEPRECATED: Speed is a value that is proportional to the speed of updates to
+// the virtual mouse
 CFG(Mouse, Speed, mouse_speed, int, 0)
 
+// Sensitivity is a percentage that is used to scale the speed of the virtual
+// mouse. This replaces the old speed value.
+CFG(Mouse, Sensitivity, mouse_sensitivity, int, 0)
+
 // ReverseScroll controls the scrolling direction
 CFG(Mouse, ReverseScroll, mouse_reverse_scroll, bool, false)
 
+// IsometricMode controls whether to use linear or isometric speed calculations
+CFG(Mouse, IsometricMode, mouse_isometric_mode, bool, false)
+
+// CurveFactor controls the speed curve
+CFG(Mouse, CurveFactor, mouse_curve_factor, int, 3)
+
+// Deadzone controls the deadzone range for the thumbstick
+CFG(Mouse, Deadzone, mouse_deadzone_factor, int, 0)
+
 /**********************************************************************
  * Profiles - only valid on Linux
  *********************************************************************/
diff --git a/daemon/x52d_config.h b/daemon/x52d_config.h
index 4ba7f3d..930f16c 100644
--- a/daemon/x52d_config.h
+++ b/daemon/x52d_config.h
@@ -39,7 +39,11 @@ struct x52d_config {
 
     bool mouse_enabled;
     int mouse_speed;
+    int mouse_sensitivity;
     bool mouse_reverse_scroll;
+    bool mouse_isometric_mode;
+    int mouse_curve_factor;
+    int mouse_deadzone_factor;
 
     bool clutch_enabled;
     bool clutch_latched;
@@ -72,7 +76,11 @@ void x52d_cfg_set_Brightness_MFD(uint16_t param);
 void x52d_cfg_set_Brightness_LED(uint16_t param);
 void x52d_cfg_set_Mouse_Enabled(bool param);
 void x52d_cfg_set_Mouse_Speed(int param);
+void x52d_cfg_set_Mouse_Sensitivity(int param);
 void x52d_cfg_set_Mouse_ReverseScroll(bool param);
+void x52d_cfg_set_Mouse_IsometricMode(bool param);
+void x52d_cfg_set_Mouse_CurveFactor(int param);
+void x52d_cfg_set_Mouse_Deadzone(int param);
 void x52d_cfg_set_Profiles_Directory(char* param);
 void x52d_cfg_set_Profiles_ClutchEnabled(bool param);
 void x52d_cfg_set_Profiles_ClutchLatched(bool param);
diff --git a/daemon/x52d_mouse.c b/daemon/x52d_mouse.c
index 4ad0c52..3dd0628 100644
--- a/daemon/x52d_mouse.c
+++ b/daemon/x52d_mouse.c
@@ -9,6 +9,7 @@
 #include "config.h"
 #include <stdio.h>
 #include <stdbool.h>
+#include <math.h>
 
 #define PINELOG_MODULE X52D_MOD_MOUSE
 #include "pinelog.h"
@@ -20,11 +21,33 @@
 #define DEFAULT_MOUSE_DELAY 70000
 #define MOUSE_DELAY_DELTA   5000
 #define MOUSE_DELAY_MIN     10000
+#define MOUSE_MULT_FACTOR  4
 #define MAX_MOUSE_MULT 5
+#define MIN_SENSITIVITY 10
+#define MAX_SENSITIVITY 500
 
-volatile int mouse_delay = DEFAULT_MOUSE_DELAY;
-volatile int mouse_mult = MOUSE_MULT_FACTOR;
 volatile int mouse_scroll_dir = 1;
+volatile bool mouse_isometric_mode = false;
+volatile int mouse_curve_factor = 3;
+volatile int mouse_deadzone_factor = 0;
+volatile int mouse_sensitivity = 0;
+
+static int clamp_int(const char *description, int value, int min, int max)
+{
+    if (value < min) {
+        PINELOG_DEBUG(_("Clamping %s value %d to range [%d..%d]"),
+                description, value, min, max);
+        return min;
+    }
+
+    if (value > max) {
+        PINELOG_DEBUG(_("Clamping %s value %d to range [%d..%d]"),
+                description, value, min, max);
+        return max;
+    }
+
+    return value;
+}
 
 void x52d_cfg_set_Mouse_Enabled(bool enabled)
 {
@@ -35,17 +58,21 @@ void x52d_cfg_set_Mouse_Enabled(bool enabled)
 
 void x52d_cfg_set_Mouse_Speed(int speed)
 {
+    // DEPRECATED, calculate the sensitivity instead
     int new_delay;
     int new_mult;
 
     int max_base_speed = (DEFAULT_MOUSE_DELAY - MOUSE_DELAY_MIN) / MOUSE_DELAY_DELTA;
     int max_speed = max_base_speed + MAX_MOUSE_MULT * MOUSE_MULT_FACTOR;
 
-    if (speed < 0 || speed > max_speed) {
-        PINELOG_INFO(_("Ignoring mouse speed %d outside supported range (0-%d)"),
-                     speed, max_speed);
-        return;
-    } else if (speed <= max_base_speed) {
+    double sensitivity;
+
+    if (mouse_sensitivity == 0) {
+        PINELOG_WARN(_("Config option 'mouse.speed' is DEPRECATED. Please use 'mouse.sensitivity' instead"));
+    }
+
+    speed = clamp_int("mouse speed", speed, 0, max_speed);
+    if (speed <= max_base_speed) {
         new_delay = DEFAULT_MOUSE_DELAY - speed * MOUSE_DELAY_DELTA;
         new_mult = MOUSE_MULT_FACTOR;
     } else {
@@ -54,10 +81,12 @@ void x52d_cfg_set_Mouse_Speed(int speed)
         new_mult = MOUSE_MULT_FACTOR + (speed - max_base_speed);
     }
 
-    PINELOG_DEBUG(_("Setting mouse speed to %d (delay %d ms, multiplier %f)"),
-                  speed, new_delay / 1000, new_mult / (double)MOUSE_MULT_FACTOR);
-    mouse_delay = new_delay;
-    mouse_mult = new_mult;
+    sensitivity = round(1e6 / new_delay * new_mult / (double)MOUSE_MULT_FACTOR);
+
+    PINELOG_INFO(_("Migrating legacy mouse speed '%d' to sensitivity '%d' (percentage)"),
+                 speed, (int)sensitivity);
+    mouse_sensitivity = clamp_int(_("speed -> sensitivity"), (int)sensitivity,
+                                  MIN_SENSITIVITY, MAX_SENSITIVITY);
 }
 
 void x52d_cfg_set_Mouse_ReverseScroll(bool enabled)
@@ -71,3 +100,33 @@ void x52d_cfg_set_Mouse_ReverseScroll(bool enabled)
         mouse_scroll_dir = 1;
     }
 }
+
+void x52d_cfg_set_Mouse_IsometricMode(bool enabled)
+{
+    PINELOG_DEBUG(_("Setting mouse isometric mode to %s"),
+                  enabled ? _("on") : _("off"));
+    mouse_isometric_mode = enabled;
+}
+
+void x52d_cfg_set_Mouse_Sensitivity(int factor)
+{
+    mouse_sensitivity = clamp_int(_("sensitivity"), factor,
+                                  MIN_SENSITIVITY, MAX_SENSITIVITY);
+
+    PINELOG_DEBUG(_("Setting mouse sensitivity to %d%%"), mouse_sensitivity);
+}
+
+void x52d_cfg_set_Mouse_CurveFactor(int factor)
+{
+    // Factor ranges from 1-5, clamp it in this range
+    // Shift by 1 so it uses the correct index
+    mouse_curve_factor = clamp_int(_("curve factor"), factor, 1, 5) - 1;
+    PINELOG_DEBUG(_("Setting mouse curve factor to %d"), mouse_curve_factor);
+}
+
+void x52d_cfg_set_Mouse_Deadzone(int factor)
+{
+    // Factor ranges from 0-12, clamp it in this range
+    mouse_deadzone_factor = clamp_int(_("deadzone factor"), factor, 0, 11);
+    PINELOG_DEBUG(_("Setting mouse deadzone to %d"), mouse_deadzone_factor);
+}
diff --git a/daemon/x52d_mouse.h b/daemon/x52d_mouse.h
index d201a12..d0f733c 100644
--- a/daemon/x52d_mouse.h
+++ b/daemon/x52d_mouse.h
@@ -12,11 +12,11 @@
 #include <stdbool.h>
 #include "libx52io.h"
 
-extern volatile int mouse_delay;
-extern volatile int mouse_mult;
+extern volatile bool mouse_isometric_mode;
 extern volatile int mouse_scroll_dir;
-
-#define MOUSE_MULT_FACTOR  4
+extern volatile int mouse_curve_factor;
+extern volatile int mouse_deadzone_factor;
+extern volatile int mouse_sensitivity;
 
 void x52d_mouse_thread_control(bool enabled);
 void x52d_mouse_handler_init(void);
diff --git a/daemon/x52d_mouse_handler.c b/daemon/x52d_mouse_handler.c
index 96d01eb..b91c6ce 100644
--- a/daemon/x52d_mouse_handler.c
+++ b/daemon/x52d_mouse_handler.c
@@ -11,6 +11,7 @@
 #include <stdbool.h>
 #include <pthread.h>
 #include <unistd.h>
+#include <math.h>
 
 #include "libx52io.h"
 #include "vkm.h"
@@ -85,40 +86,104 @@ static int report_wheel(void)
     return (rc == VKM_SUCCESS);
 }
 
-static int get_axis_val(int index)
+static inline int fsgn(double f)
 {
-    int axis_val = new_report.axis[index];
-
-    /*
-     * Axis value ranges from 0 to 15, with the default midpoint at 8.
-     * We need to translate this to a range of -7 to +7. Since the midpoint
-     * is slightly off-center, we will shift the values left, and subtract
-     * 15, effectively, giving us a range of -15 to +15. Shifting right again
-     * will reduce the range to -7 to +7, and effectively ignore the reported
-     * values of 7 and 8.
-     */
-    axis_val = ((axis_val << 1) - 15) >> 1;
-
-    /*
-     * Factor in the multiplicative factor for the axis. This deliberately
-     * uses integer division, since the uinput event only accepts integers.
-     * For the speed purposes, this should be good enough.
-     */
-    axis_val = (axis_val * mouse_mult) / MOUSE_MULT_FACTOR;
-
-    return axis_val;
+    return (f >= 0 ? 1 : -1);
 }
 
+static const double MOUSE_CURVE_FACTORS[5] = {
+    1.0, 1.2, 1.5, 1.8, 2.0
+};
+
+static const double MOUSE_DEADZONES[12] = {
+    0.0, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5
+};
+
 static int report_axis(void)
 {
-    vkm_result rc;
-    int dx = get_axis_val(LIBX52IO_AXIS_THUMBX);
-    int dy = get_axis_val(LIBX52IO_AXIS_THUMBY);
+    #define MAX_TICK_SPEED 250.0
 
-    rc = vkm_mouse_move(mouse_context, dx, dy);
+    static double accum_x = 0.0;
+    static double accum_y = 0.0;
+
+    /* Center raw HID values (0,15) => (-8, 7) */
+    int dx = new_report.axis[LIBX52IO_AXIS_THUMBX] - 8;
+    int dy = new_report.axis[LIBX52IO_AXIS_THUMBY] - 8;
+
+    /* Calculate radial magnitude */
+    double mag = sqrt((double)(dx * dx + dy * dy));
+    double cfg_deadzone = MOUSE_DEADZONES[mouse_deadzone_factor];
+
+    /* Radial deadzone check */
+    if (mag <= cfg_deadzone) {
+        accum_x = 0.0;
+        accum_y = 0.0;
+        return 0;
+    }
+
+    /* Calculate gain */
+    double gain = (double)mouse_sensitivity / 100.0;
+    double exponent = MOUSE_CURVE_FACTORS[mouse_curve_factor];
+
+    /* Normalize magnitude */
+    double adj_mag = mag - cfg_deadzone;
+    double out_x = 0.0;
+    double out_y = 0.0;
+
+    if (mouse_isometric_mode) {
+        /* Isometric mode: speed is a function of total distance */
+        double speed = gain * pow(adj_mag, exponent);
+
+        /* Clamp total speed before breaking into components */
+        if (speed > MAX_TICK_SPEED) {
+            speed = MAX_TICK_SPEED;
+        }
+
+        /* Unit vector * speed */
+        out_x = (dx / mag) * speed;
+        out_y = (dy / mag) * speed;
+    } else {
+        /* Linear mode: speed is independently calculated for X & Y axes */
+        double ratio = adj_mag / mag;
+        double cur_x = dx * ratio;
+        double cur_y = dy * ratio;
+
+        out_x = fsgn(cur_x) * gain * pow(fabs(cur_x), exponent);
+        out_y = fsgn(cur_y) * gain * pow(fabs(cur_y), exponent);
+
+        /* Clamp individual axis speeds */
+        if (fabs(out_x) > MAX_TICK_SPEED) {
+            out_x = fsgn(out_x) * MAX_TICK_SPEED;
+        }
+
+        if (fabs(out_y) > MAX_TICK_SPEED) {
+            out_y = fsgn(out_y) * MAX_TICK_SPEED;
+        }
+    }
+
+    /* Accumulate movement and independent resets */
+    accum_x += out_x;
+    accum_y += out_y;
+
+    if (dx == 0) {
+        accum_x = 0.0;
+    }
+    if (dy == 0) {
+        accum_y = 0.0;
+    }
+
+    /* Extract integer values for VKM injection */
+    int move_x = (int)accum_x;
+    int move_y = (int)accum_y;
+
+    accum_x -= move_x;
+    accum_y -= move_y;
+
+    vkm_result rc;
+    rc = vkm_mouse_move(mouse_context, move_x, move_y);
     if (rc != VKM_SUCCESS && rc != VKM_ERROR_NO_CHANGE) {
         PINELOG_ERROR(_("Error %d writing mouse axis event (dx %d, dy %d)"),
-                rc, dx, dy);
+                rc, move_x, move_y);
     }
 
     return (rc == VKM_SUCCESS);
@@ -154,7 +219,7 @@ static void * x52_mouse_thr(void *param)
             report_sync();
         }
 
-        usleep(mouse_delay);
+        usleep(10000);
     }
 
     return NULL;
diff --git a/daemon/x52d_mouse_test.c b/daemon/x52d_mouse_test.c
index 2b7fe84..71c031c 100644
--- a/daemon/x52d_mouse_test.c
+++ b/daemon/x52d_mouse_test.c
@@ -44,75 +44,61 @@ static void test_mouse_thread_disabled(void **state)
     x52d_cfg_set_Mouse_Enabled(false);
 }
 
+/* The following tests are dependent on the values in x52d_mouse.c */
 static void test_mouse_speed_negative(void **state)
 {
     (void)state;
-    int orig_mouse_delay = mouse_delay;
-    int orig_mouse_mult = mouse_mult;
-
     x52d_cfg_set_Mouse_Speed(-1);
-    assert_int_equal(mouse_delay, orig_mouse_delay);
-    assert_int_equal(mouse_mult, orig_mouse_mult);
+    assert_int_equal(mouse_sensitivity, 14);
 }
 
-/* The following tests are dependent on the values in x52d_mouse.c */
 static void test_mouse_speed_0(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(0);
-    assert_int_equal(mouse_delay, 70000);
-    assert_int_equal(mouse_mult, 4);
+    assert_int_equal(mouse_sensitivity, 14);
 }
 
 static void test_mouse_speed_mid_base(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(6);
-    assert_int_equal(mouse_delay, 40000);
-    assert_int_equal(mouse_mult, 4);
+    assert_int_equal(mouse_sensitivity, 25);
 }
 
 static void test_mouse_speed_max_base(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(12);
-    assert_int_equal(mouse_delay, 10000);
-    assert_int_equal(mouse_mult, 4);
+    assert_int_equal(mouse_sensitivity, 100);
 }
 
 static void test_mouse_speed_min_hyper(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(13);
-    assert_int_equal(mouse_delay, 10000);
-    assert_int_equal(mouse_mult, 5);
+    assert_int_equal(mouse_sensitivity, 125);
 }
 
 static void test_mouse_speed_mid_hyper(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(22);
-    assert_int_equal(mouse_delay, 10000);
-    assert_int_equal(mouse_mult, 14);
+    assert_int_equal(mouse_sensitivity, 350);
 }
 
 static void test_mouse_speed_max_hyper(void **state)
 {
     (void)state;
     x52d_cfg_set_Mouse_Speed(32);
-    assert_int_equal(mouse_delay, 10000);
-    assert_int_equal(mouse_mult, 24);
+    assert_int_equal(mouse_sensitivity, 500);
 }
 
 static void test_mouse_speed_above_max(void **state)
 {
-    int orig_mouse_delay = mouse_delay;
-    int orig_mouse_mult = mouse_mult;
     (void)state;
-
     x52d_cfg_set_Mouse_Speed(33);
-    assert_int_equal(mouse_delay, orig_mouse_delay);
-    assert_int_equal(mouse_mult, orig_mouse_mult);
+    assert_int_equal(mouse_sensitivity, 500);
 }
 
 static void test_mouse_reverse_scroll_enabled(void **state)
diff --git a/meson.build b/meson.build
index 4c83d49..7124f00 100644
--- a/meson.build
+++ b/meson.build
@@ -93,6 +93,9 @@ endif
 
 add_project_arguments('-isystem', meson.current_source_dir() / 'sys', language: 'C')
 
+# Sometimes libm is in standard library
+dep_math = compiler.find_library('m', required: false)
+
 #######################################################################
 # Internal dependencies
 #######################################################################
diff --git a/po/libx52.pot b/po/libx52.pot
index d326f6b..9cae6ce 100644
--- a/po/libx52.pot
+++ b/po/libx52.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.3.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2026-03-27 20:52-0700\n"
+"POT-Creation-Date: 2026-04-01 20:47-0700\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -142,13 +142,13 @@ msgstr ""
 msgid "Unknown LED state %d"
 msgstr ""
 
-#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
-#: daemon/x52d_mouse.c:66
+#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:55
+#: daemon/x52d_mouse.c:95 daemon/x52d_mouse.c:107
 msgid "off"
 msgstr ""
 
-#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
-#: daemon/x52d_mouse.c:66
+#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:55
+#: daemon/x52d_mouse.c:95 daemon/x52d_mouse.c:107
 msgid "on"
 msgstr ""
 
@@ -864,63 +864,105 @@ msgstr ""
 msgid "Shutting down X52 I/O driver thread"
 msgstr ""
 
-#: daemon/x52d_mouse.c:31
+#: daemon/x52d_mouse.c:38 daemon/x52d_mouse.c:44
+#, c-format
+msgid "Clamping %s value %d to range [%d..%d]"
+msgstr ""
+
+#: daemon/x52d_mouse.c:54
 #, c-format
 msgid "Setting mouse enable to %s"
 msgstr ""
 
-#: daemon/x52d_mouse.c:45
-#, c-format
-msgid "Ignoring mouse speed %d outside supported range (0-%d)"
+#: daemon/x52d_mouse.c:71
+msgid ""
+"Config option 'mouse.speed' is DEPRECATED. Please use 'mouse.sensitivity' "
+"instead"
 msgstr ""
 
-#: daemon/x52d_mouse.c:57
+#: daemon/x52d_mouse.c:86
 #, c-format
-msgid "Setting mouse speed to %d (delay %d ms, multiplier %f)"
+msgid "Migrating legacy mouse speed '%d' to sensitivity '%d' (percentage)"
 msgstr ""
 
-#: daemon/x52d_mouse.c:65
+#: daemon/x52d_mouse.c:88
+msgid "speed -> sensitivity"
+msgstr ""
+
+#: daemon/x52d_mouse.c:94
 #, c-format
 msgid "Setting mouse reverse scroll to %s"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:43
+#: daemon/x52d_mouse.c:106
+#, c-format
+msgid "Setting mouse isometric mode to %s"
+msgstr ""
+
+#: daemon/x52d_mouse.c:113
+msgid "sensitivity"
+msgstr ""
+
+#: daemon/x52d_mouse.c:116
+#, c-format
+msgid "Setting mouse sensitivity to %d%%"
+msgstr ""
+
+#: daemon/x52d_mouse.c:123
+msgid "curve factor"
+msgstr ""
+
+#: daemon/x52d_mouse.c:124
+#, c-format
+msgid "Setting mouse curve factor to %d"
+msgstr ""
+
+#: daemon/x52d_mouse.c:130
+msgid "deadzone factor"
+msgstr ""
+
+#: daemon/x52d_mouse.c:131
+#, c-format
+msgid "Setting mouse deadzone to %d"
+msgstr ""
+
+#: daemon/x52d_mouse_handler.c:44
 #, c-format
 msgid "Error %d writing mouse button event (button %d, state %d)"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:81
+#: daemon/x52d_mouse_handler.c:82
 #, c-format
 msgid "Error writing mouse wheel event %d"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:120
+#: daemon/x52d_mouse_handler.c:185
 #, c-format
 msgid "Error %d writing mouse axis event (dx %d, dy %d)"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:132
+#: daemon/x52d_mouse_handler.c:197
 msgid "Error writing mouse sync event"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:151
+#: daemon/x52d_mouse_handler.c:216
 msgid "Starting X52 virtual mouse driver thread"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:170
+#: daemon/x52d_mouse_handler.c:235
 #, c-format
 msgid "Error %d initializing mouse thread: %s"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:177
+#: daemon/x52d_mouse_handler.c:242
 msgid "Shutting down X52 virtual mouse driver thread"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:184
+#: daemon/x52d_mouse_handler.c:249
 msgid "Virtual mouse not created. Ignoring thread state change"
 msgstr ""
 
-#: daemon/x52d_mouse_handler.c:236 daemon/x52d_mouse_handler.c:244
+#: daemon/x52d_mouse_handler.c:301 daemon/x52d_mouse_handler.c:309
 #, c-format
 msgid "Error %d creating X52 virtual mouse"
 msgstr ""
diff --git a/po/xx_PL.po b/po/xx_PL.po
index b21cf17..eae89f6 100644
--- a/po/xx_PL.po
+++ b/po/xx_PL.po
@@ -7,8 +7,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: libx52 0.2.3\n"
 "Report-Msgid-Bugs-To: https://github.com/nirenjan/libx52/issues\n"
-"POT-Creation-Date: 2026-03-27 20:52-0700\n"
-"PO-Revision-Date: 2026-03-27 08:33-0700\n"
+"POT-Creation-Date: 2026-04-01 20:47-0700\n"
+"PO-Revision-Date: 2026-04-01 20:50-0700\n"
 "Last-Translator: Nirenjan Krishnan <nirenjan@gmail.com>\n"
 "Language-Team: Dummy Language for testing i18n\n"
 "Language: xx_PL\n"
@@ -142,13 +142,13 @@ msgstr "YYay-MMay-DDay"
 msgid "Unknown LED state %d"
 msgstr "Unknownay EDLay atestay %d"
 
-#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
-#: daemon/x52d_mouse.c:66
+#: libx52/x52_stringify.c:47 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:55
+#: daemon/x52d_mouse.c:95 daemon/x52d_mouse.c:107
 msgid "off"
 msgstr "offay"
 
-#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:32
-#: daemon/x52d_mouse.c:66
+#: libx52/x52_stringify.c:48 daemon/x52d_clock.c:29 daemon/x52d_mouse.c:55
+#: daemon/x52d_mouse.c:95 daemon/x52d_mouse.c:107
 msgid "on"
 msgstr "onay"
 
@@ -234,34 +234,32 @@ msgid "Read timeout"
 msgstr "Eadray imeouttay"
 
 #: vkm/vkm_common.c:26
-#, fuzzy
 msgid "Unknown error"
-msgstr "Unknownay erroray %d"
+msgstr "Unknownay erroray"
 
 #: vkm/vkm_common.c:27
 msgid "Not ready"
-msgstr ""
+msgstr "Otnay eadyray"
 
 #: vkm/vkm_common.c:28
 msgid "Out of memory"
-msgstr ""
+msgstr "Outay ofay emorymay"
 
 #: vkm/vkm_common.c:30
-#, fuzzy
 msgid "Not supported"
-msgstr "Operationay otnay upportedsay"
+msgstr "Otnay upportedsay"
 
 #: vkm/vkm_common.c:31
 msgid "Virtual device failure"
-msgstr ""
+msgstr "Irtualvay eviceday ailurefay"
 
 #: vkm/vkm_common.c:32
 msgid "Unable to write event"
-msgstr ""
+msgstr "Unableay otay itewray eventay"
 
 #: vkm/vkm_common.c:33
 msgid "No state change"
-msgstr ""
+msgstr "Onay atestay angechay"
 
 #: evtest/ev_test.c:110
 #, c-format
@@ -919,64 +917,110 @@ msgstr "Erroray %d initializingay I/O iverdray eadthray: %s"
 msgid "Shutting down X52 I/O driver thread"
 msgstr "Uttingshay ownday X52 I/O iverdray eadthray"
 
-#: daemon/x52d_mouse.c:31
+#: daemon/x52d_mouse.c:38 daemon/x52d_mouse.c:44
+#, c-format
+msgid "Clamping %s value %d to range [%d..%d]"
+msgstr "Ampingclay %s aluevay %d otay angeray [%d..%d]"
+
+#: daemon/x52d_mouse.c:54
 #, c-format
 msgid "Setting mouse enable to %s"
 msgstr "Ettingsay ousemay enableay otay %s"
 
-#: daemon/x52d_mouse.c:45
-#, c-format
-msgid "Ignoring mouse speed %d outside supported range (0-%d)"
-msgstr "Ignoringay ousemay eedspay %d outsideay upportedsay angeray (0-%d)"
+#: daemon/x52d_mouse.c:71
+msgid ""
+"Config option 'mouse.speed' is DEPRECATED. Please use 'mouse.sensitivity' "
+"instead"
+msgstr ""
+"Onfigcay optionay 'mouse.speed' isay EPRECATEDDAY. Easeplay useay 'mouse."
+"sensitivity' insteaday"
 
-#: daemon/x52d_mouse.c:57
+#: daemon/x52d_mouse.c:86
 #, c-format
-msgid "Setting mouse speed to %d (delay %d ms, multiplier %f)"
-msgstr "Ettingsay ousemay eedspay otay %d (elayday %d ms, ultipliermay %f)"
+msgid "Migrating legacy mouse speed '%d' to sensitivity '%d' (percentage)"
+msgstr ""
+"Igratingmay egacylay ousemay eedspay '%d' otay ensitivitysay "
+"'%d' (ercentagepay)"
 
-#: daemon/x52d_mouse.c:65
+#: daemon/x52d_mouse.c:88
+msgid "speed -> sensitivity"
+msgstr "eedspay -> ensitivitysay"
+
+#: daemon/x52d_mouse.c:94
 #, c-format
 msgid "Setting mouse reverse scroll to %s"
 msgstr "Ettingsay ousemay everseray ollscray otay %s"
 
-#: daemon/x52d_mouse_handler.c:43
+#: daemon/x52d_mouse.c:106
+#, c-format
+msgid "Setting mouse isometric mode to %s"
+msgstr "Ettingsay ousemay isometricay odemay otay %s"
+
+#: daemon/x52d_mouse.c:113
+msgid "sensitivity"
+msgstr "ensitivitysay"
+
+#: daemon/x52d_mouse.c:116
+#, c-format
+msgid "Setting mouse sensitivity to %d%%"
+msgstr "Ettingsay ousemay ensitivitysay otay %d"
+
+#: daemon/x52d_mouse.c:123
+msgid "curve factor"
+msgstr "urvecay actorfay"
+
+#: daemon/x52d_mouse.c:124
+#, c-format
+msgid "Setting mouse curve factor to %d"
+msgstr "Ettingsay ousemay urvecay actorfay otay %d"
+
+#: daemon/x52d_mouse.c:130
+msgid "deadzone factor"
+msgstr "eadzoneday actorfay"
+
+#: daemon/x52d_mouse.c:131
+#, c-format
+msgid "Setting mouse deadzone to %d"
+msgstr "Ettingsay ousemay eadzoneday otay %d"
+
+#: daemon/x52d_mouse_handler.c:44
 #, c-format
 msgid "Error %d writing mouse button event (button %d, state %d)"
 msgstr ""
 "Erroray %d itingwray ousemay uttonbay eventay (uttonbay %d, atestay %d)"
 
-#: daemon/x52d_mouse_handler.c:81
+#: daemon/x52d_mouse_handler.c:82
 #, c-format
 msgid "Error writing mouse wheel event %d"
 msgstr "Erroray itingwray ousemay eelwhay eventay %d"
 
-#: daemon/x52d_mouse_handler.c:120
+#: daemon/x52d_mouse_handler.c:185
 #, c-format
 msgid "Error %d writing mouse axis event (dx %d, dy %d)"
 msgstr "Erroray %d itingwray ousemay axisay eventay (xday %d, yday %d)"
 
-#: daemon/x52d_mouse_handler.c:132
+#: daemon/x52d_mouse_handler.c:197
 msgid "Error writing mouse sync event"
 msgstr "Erroray itingwray ousemay yncsay eventay"
 
-#: daemon/x52d_mouse_handler.c:151
+#: daemon/x52d_mouse_handler.c:216
 msgid "Starting X52 virtual mouse driver thread"
 msgstr "Artingstay X52 irtualvay ousemay iverdray eadthray"
 
-#: daemon/x52d_mouse_handler.c:170
+#: daemon/x52d_mouse_handler.c:235
 #, c-format
 msgid "Error %d initializing mouse thread: %s"
 msgstr "Erroray %d initializingay ousemay eadthray: %s"
 
-#: daemon/x52d_mouse_handler.c:177
+#: daemon/x52d_mouse_handler.c:242
 msgid "Shutting down X52 virtual mouse driver thread"
 msgstr "Uttingshay ownday X52 irtualvay ousemay iverdray eadthray"
 
-#: daemon/x52d_mouse_handler.c:184
+#: daemon/x52d_mouse_handler.c:249
 msgid "Virtual mouse not created. Ignoring thread state change"
 msgstr "Irtualvay ousemay otnay eatedcray. Ignoringa eadthray atestay angechay"
 
-#: daemon/x52d_mouse_handler.c:236 daemon/x52d_mouse_handler.c:244
+#: daemon/x52d_mouse_handler.c:301 daemon/x52d_mouse_handler.c:309
 #, c-format
 msgid "Error %d creating X52 virtual mouse"
 msgstr "Erroray %d eatingcray X52 irtualvay ousemay"
@@ -1039,3 +1083,11 @@ msgstr "Argumentay engthlay ootay onglay\n"
 #, c-format
 msgid "Running in interactive mode, ignoring extra arguments\n"
 msgstr "Unningray inay interactiveay odemay, ignoringay extraay argumentsay\n"
+
+#, c-format
+#~ msgid "Ignoring mouse speed %d outside supported range (0-%d)"
+#~ msgstr "Ignoringay ousemay eedspay %d outsideay upportedsay angeray (0-%d)"
+
+#, c-format
+#~ msgid "Setting mouse speed to %d (delay %d ms, multiplier %f)"
+#~ msgstr "Ettingsay ousemay eedspay otay %d (elayday %d ms, ultipliermay %f)"