I agree with ink. It sounds Like your just too heavy on the stick. Have you ever heard the phrase, "smooth is fast"? You don't want to jerk your stick around ever. The smoother you move your stick the better you conserve your energy.
When I started hee I had the damping turned way up because I was so heavy on the stick. It took awhile, but now I only have a bit of damping in my rudder. All the rest is gone due to how much smoother I am on the stick.