There is a way to tame any RC plane by changing the position of the control rods at the little holes at the control horn or at the servo arm, which ever could be easier.
If doing so at the control horn, use the hole that is far from the control surface. If you choose to do it at the servo arm, the use a hole which is close to the center of the arm.
The you will have to level the control surfaces again and trim at flight.