In my opinion, if you notice that your opponent is returning a heavy backspin to you, you need to realize if you can loop that backspin or not. If yes, then keep practicing looping the ball. Whether it goes in or not, then you are practicing that. I wouldn't rush into looping it hard also. I would focus on soft loop returns and placement.
Your opponent is trying to make you uncomfortable, that is their goal. So why don't you try to return the backspin by just lifting the ball and give it to your opponent short. That should lose the spin a little bit so if they try to chop it hard again it will pop up higher then you are in a better position to consistently attack the ball.
If they won't give you the opportunity to do topspins, which is your style of play, then you have to learn how to create it for yourself.