When I’m using my Razor mouse it never seems to happen. If I step away for 10 minutes or put on a movie then try to use the mouse, often times my cursor does not move anymore. Sometimes I can turn the Razor mouse off then back on; usually that doesn’t cause it to reconnect.
If I use my other mouse (while the razor mouse is not working) it may work perfectly fine; or it may be extremely laggy. Anything I do with my keyboard demonstrates that the computer is moving at full speed with everything else.
I’ve uninstalled Synapse and reinstalled a few times. It has not fixed it.