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. : r/GlobalOffensive
How to Calibrate Your Mouse Like a Pro-Gamer – GGWP Academy
Game profile - Counter Strike: Global Offensive (CS:GO) - Wooting Knowledge Base
CS 1.6] Blurry Text ingame + Copy Paste with mouse sometimes does not work? · Issue #493 · ValveSoftware/halflife · GitHub