Character Controller help

I have been using the default character controller script for a while now. I was working on a project and I tried turning down the mouse look sensitivity and I instantly noticed that the X went down fine, but no matter how I adjust the Y it deosnt help. I end up with very high Y sensitivity and low X sensitivity. Please tell me how I can set them both the same.

there is two mouselook script is attached one is in controller and another one is in mainCamera,

set x in controller and y in camera