Also I think his contact point is very low. In the video I can see youre arm still bent while making contact. So A) You need to stop focusing on so much the trophy position rather focusing on where you are contacting the ball. Your arm needs to be fully extend when making contact Or B) Like the other posters pointed out you may need to accelerate to the ball. You can do this by simply throwing a tennis ball as hard as you can before picking up a racquet.
Bounce Hit Bounce Hit Bounce Miss WTF?!?! Anybody play in NJ?