In regedit, there are three settings in the registry correlated to changes in the speed setting of mouse control panel:
MouseSpeed key maxes at
2 from control panel, and increasing this above
2 will cause the mouse to slow down, since it doesn't accept values above
The mouse speed is a multiplier for
MouseThreshold2, which correlate to acceleration.
To increase mouse sensitivity to maximum:
You may want to set
MouseThreshold2 a little higher than
0 if your pointer becomes a little too jumpy on the screen, but make sure that
MouseThreshold2 is greater or equal to
MouseThreshold1, and all three of these are integer values.