Not all antispin players play the same way, so it depends. Many use it to block, producing slow short balls when you attack hard, breaking your rhythm that way - or trying to, anyway. The more spin you add, the more you'll have to deal with on your next ball.
One of the things I try is to play deep and flat to the anti side, going for the kill on the next shot whenever I can. If for some reason I pushed a ball, I try to prepare to counter the next ball.
Antispin players usually (but not always) cover a wide part of the table with their BH, and often (but not always) have a vulnerable crossover point a bit more on their FH side. If so, that can be exploited.
Defenders using anti often (but not always) have a hard time with slow and highly spinny balls to the deep FH. If so, mix deep and flat with slow and spinny.