Well, that's actually weird, that we can't tweak control sensitivity settings in game.
Basic settings for mouse would very nice, because now to just look around you need to take a really big move with a mouse, flight control also very slow and hard with a mouse. So mouse sensitivity should be tweaked, or we should have a settings parameter for this.
On the other side - movement controls are too sensitive - you tap W and your horsie almost jumps forward. It's very hard to take precise movement, when, for example you want to take a screenshot on Celestia statue's horn in Heartlands, or to sit down on a pillow in a cafe.