There is a good chance that your mouse’s DPI or sensitivity is set too high. When mouse DPI and sensitivity are set too high, you may have to make microscopic movements with your hand just to take precision shots. … Mouse Sensitivity: the speed of a mouse pointer and how fast it moves on the screen.
How do I calibrate my mouse?
Each game handles sensitivity values in its own way but a lower sensitivity allows more precise movements, so it is usually best to set the in-game sensitivity to 1.0 or as low as possible and increase your mouse DPI to get the turning speed you want.
What is mouse sensitivity?
Mouse sensitivity is the speed of a mouse pointer and how fast it moves on the screen. With increased sensitivity, the mouse moves faster and requires less effort to get across the screen.