Steam Community :: Guide :: How to fix mouse and keyboard lag in CSGO
If you experiencing strange mouse movements, and you feel that "something is off" with your sensitivity; turn off "Fullscreen Optimizations" in the Compatibility Tab of the csgo.exe properties. : GlobalOffensive
If you are having performance issues / stuttering in CS:GO after the Windows 10 Fall Creators Update, try these potential fixes : GlobalOffensive
Steam Community :: Guide :: How to fix mouse and keyboard lag in CSGO
ESR - MarkC Windows Mouse Acceleration Fix - Hardware Forum