Hey Alex!
Ok so for this type of serve I would suggest trying to push and work on this aggressive low type of push which is still hard for the server to 3rd ball attack. Of course if the push is too weak this will leave you open to attack as you said and often playing a half long topspin can also end up a bit weak. I often use an aggressive push return as an option for this serve and find with practice you can keep it low and deep.
To do this you need to make sure you take the ball early and also contact on the side of the ball against the side spin to counteract it but also help keep the ball low. Also try not to be too careful with the return, it’s important to be decisive and positive against a high spin serve.
Let me know if that all makes sense.
Cheers, Tom
