Originally Posted by Anton
Don't lift rear foot and push off both legs on the backhand.
On forehand side try to set up deeper - more leg bend, more shoulder rotation (use your left arm more). On arm action try to smoothly extend the forearm a bit down and behind you right at the end of take back, so you get more upwards brush on the ball from the arm, instead of just relying on very narrow wrist action window
I was doing that tonight as well... I was getting irritated...