Mouse_force isn't an option simply because it has limits: it can only go from -1 to 1, meaning if the player moves his mouse very quickly, the camera will be limited to how fast it can turn. Unless there's some way to get rid of the limit, mickey is better, it's just I wish I didn't have to sacrifice precision for sensitivity.

Also, I put camera rotation at the end of the loop and movement does actually feel a bit better. Thanks for that.