When I move my mouse quickly, the sensitivity changes entirely until I set the dpi to something else and change it back. So for example, my regular dpi will be 1500, and when I move my mouse quickly, it changes to something far over 1500 dpi. I don't know why, and it is super annoying when it happens during gaming. Also, before you ask, yes, I do have mouse acceleration turned OFF. My mouse is a Corsair M65 Pro RGB.