There not much you can do from with in the game. I programmed this using a regular mouse, so you shouldn't have that issue. What kind of mouse are you using and did you check the sensitivity for your mouse on the desktop?
I'm using a wird Logitech gaming Mouse. Don't have another one Here that works to try, though.
Never Had any Problems with Other Games though. The Game Just completely ignores my Mouse and Jeeps Spinning my character. I unplugged my gamepad to make Sure it isn't causing the Problem.
I'm sorry to hear that, I'm currently working on the next update. I will implement more options for the controls like adjusting sensitivity and such. With the controller unplugged is it still spinning, also does your character seem to be flying out of the map?