it's a rite of passage when you can handle these types of players.
either by doing what they are doing but better (long drawn out points).
or rolling topspin shots forehand side and then backhand side and over and over again until they are tired of running (requires good control and patience and consistency).
or come to net and finish points quickly (requires good volleys and overheads).
what's scary is that there a pushers out there who can junk it up and play retriever all day long AND then crush winners and volley and hit overheads if you give them a short ball.