anyone else experiencing this? They're not 1:1 - what I mean is, they have a certain sensitivity when you're moving the mouse in an angle in front of Raz, but if you move more the sensitivity gradually decrease and you need a bigger movement (ie doing a 360°).

Any way to fix it? please help it's driving me mad :(

Try disabling Vsync, this should help (the game appears to use Triple Buffering with Vsync which causes additional lag). You can limit the framerate via the in-game limiter to 60 or more -> less lag than with Vsync @ 60 Hz.

Best regards,
Raff

Thank you, it helped. But they're still not "pixel perfect". The sens seems to slow down the longer the mouse movement is and the bigger the angle I'm rotating.