Is it stationary when hovering "unlevel"? If it is stationary, why do you think there is something wrong?

Go back to your high school physics days. For every action there is an equal but opposite reaction. The main rotor is keeping gravity in check, and the tail rotor is keeping the torque in check. Well not really. The tail rotor is also producing thrust that has to be balanced by the main rotor.

ALL HELICOPTERS HOVER TILTED TO ONE SIDE. Do a search on all the rc helicopter forums and you will find out that the question is asked several times a year.

Rafael