Mouse Movement Error/ Slow Head Moving

Hello. I have a very big problem with my game. I have a very good mouse , but when i move my mouse , in game the head turns in about 1 second. This really makes the game unplayable for me. Please i want some recomandations for what to do. PC specs :

 

 

GPU: GeForce RTX 2060

CPU: IntelCore i9-9900k.

 

thank you!