Mouse movement bug

[P-NuTTy]

Bought 2 copies of game. 1 PC has GSYNC and the other doesn't.
If V-Sync isn't enabled in game settings then the mouse movement/looking around doesn't work properly. Moves a quarter turn then pauses for half a second, moves a quarter turn pauses have a second, etc..
I doubt it's an actual V-Sync issue as there's no issues when moving character around, it's just mouse movements and very consistent in its mouse movement timing.
Both PCs set to 1080p, max settings. Tried enabling and disabling anti-aliasing.

[P-NuTTy]

Just figured something out. There is still some lag in movement even with V-Sync enabled. Looks like this game is optimized for 60fps.
I have display set to 144hz and graphics at 60fps with V-Sync disabled, movement is now butter smooth.
Dev, if you're reading please fix this.

[ArtDock]

Hello! We have already fixed this and some other bugs. You can check it any time. Just go and play SOS OPS!

[P-NuTTy]

Hi, thanks for the reply. It's better but still sticks when moving mouse left and right when setting it to anything other than 60fps.
It only seems to be in single player mode, I'm guessing Steam servers limit to 60fps anyway.