When turning left and right, when the stick gets all the way to edge the speed accelerates in order to let you turn faster… it doesnt do that when going up and down since there really is no reason to.
You can turn the outer deadzone to 0 and the look acceleration to 1, thats probably as close as you can get. But im not sure why you would want to turn so slowly.
EDIT: Personally the settings I like are inner/outer deadzones at 0 (if your controller allows), sens at 3, and acceleration at 4.
Mine is
Sens: 4
Look accel: 2-3 (depending on the day lol)
deadzones: 0
Try playing around with it. I felt I was having issues on 3 but bumped it up to 4 and it’s’ great. 3-5 is also OK (I’ll play around with it some more before coming to a decision)
Sensitivity: 10
Acceleration: 1
Dead zones: 0% on both
As fast as possible. The amount of perfect kills that I get went up after making the changes…been playing at max sensitivity in every FPS for years now though, so I’ve had a lot of practice. Also playing on PC probably helped with that.