[Say Chi Sin Lo]

Why are you seemingly admiring your shots? Hit the ball, and return to center of the court/ready position. Don't stand there and pose for a second or two.

As others have commented, more knee bend and overall footwork. Also, looks like you're really jerking your torso/lower back. That can't be good in the long run.

And speed up the feed, all that's doing is encouraging lethargic movements.