I noticed this a long time ago, but now that the game is released I am a bit surprised to see it still exists.
If you spin your mouse to the right or left, you'll spin around and do a 720 degree (or however far you want to go) in an instant. I mean, super fast. This occurs on land, in any stance, or even under water. Very unrealistic is the :(

Im sure this has been reported before(possibly by me even) but I couldn't find it. If so, sorry.