I will have a suggestion that helped me for this question. Just before you hit the ball imagine the correct ball contact point. So for topspin it is usually a 2.5 hour clock point from a 45 degree swing path. Now just hit the ball at the correct contact point. Doing this will get you out of your incorrect swing path and deepen your focus on the ball too. Now use a faster hip rotation and keep the 45 degree swing path and you will have both high spin and speed. Look at Dans forehand.
Answer for covering-the-ball
