Good-ish news then. The new input handling system should fix this. Likewise, my hack week “advanced mouse sensitivity” changes will also partially fix this in the event it is released before the new input handling system has all the bugs worked out. The main difference of my changes applied to the existing input handling is that mouse accel will be missing.
It isn’t clear when either will be fully functional, ideally within the next few weeks as the code for the new input handling is there, but crashes some users. My changes are mostly there, but require a bugfix that should be released this week.