Thanks, on Lubuntu 18.04.4 LTS, it's /lib/udev/hwdb.d/70-mouse.hwdb.
I found the mouse far too slow after the update. Personally, I like to
be able to quickly move the cursor from the left to right edge of my
1920 x 1080 screen in about an inch of physical movement.
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You received this bug
I'm running Lubuntu 18.04.4 LTS and recently upgraded to a Microsoft
Classic Intellimouse and find the current speed to be fine. Settings at
present are the defaults (in Input Device Preferences, acceleration 2.0
and sensitivity 10). I received notification about this update today and
am concerned
