FPS games typically use raw input, which bypasses any acceleration settings in the OS. This works on both Windows and macOS, assuming the game is properly written. This is why I insist on keeping mouse acceleration enabled since it helps with everyday computing tasks and has no effect on at least the games I normally play.
Regarding the comment above, it is definitely possible there are subtle configuration differences that cause the described behavior (different acceleration curves, polling rate/DPI settings, display refresh rates, etc). FWIW, my “gaming” mouse works fine with my MBP, but it takes a moment to readjust to the different sensitivity and acceleration behavior.
Regarding the comment above, it is definitely possible there are subtle configuration differences that cause the described behavior (different acceleration curves, polling rate/DPI settings, display refresh rates, etc). FWIW, my “gaming” mouse works fine with my MBP, but it takes a moment to readjust to the different sensitivity and acceleration behavior.