Matching my mouse polling rate and framerate cap seemed to have fixed the mouse camera movement stutter
Luckily, my PC can maintain a locked 125FPS. So in my case, I set my mouse polling rate to 125Hz and capped the game to 125FPS
I experimented and found that the mouse camera stutter would only happen if my FPS are not exactly 125FPS.
This is on a 175HZ G-Sync Ultimate display with G-Sync on and Vsync on in the Nvidia control panel. Used Riva Tuner to cap my FPS
Matching the FPS cap to something your polling rate is divisible by seems to help a fair amount, but it still isn't totally correct. Definitely still doesn't look as smooth as controller.
Omg this actually worked! tried 140 and 160 fps but had this stutter/jitter the whole time. Locked it to 125 and now its buttery smooth. Sadly my CPU is to slow to keep it consistent, so as soon as i drop even a few fps the jitter is back
