I am 5'8" and I play against a guy that is a 6'4". His serve comes in at a very steep angle. It usually lands short in the box but it's got respectable pace on it. If I return at the baseline, the ball is well above my shoulders and still rising. i can't really get a good swing at it. If I move in to take it early, I'm robbed of time, because the serve is still decently quick. In singles, I can just slice/block it back. But in doubles, the net guy is having a field day off the weak returns. Any suggestions?