Sensitive mouse, only when keyboard is in use

I have a scene, with a skeletal character. The character was setup with only two animations. An idle and a walk. I followed this documentation (steps 1-5 hence the idle and walk). Everything works fine, but when I move the character with the arrow keys, but turn the character with the mouse the camera becomes super sensitive and the character (and camera) start spinning around. I don’t think I did anything wrong. I checked the mouse input settings everywhere I could, and made It very un-sensitive but this still happens. Any help is appreciated!