How to avoid PayPal 2.5% FX fee from USD to GBP?

I'm based in the U.K. and have a store selling online courses. My customers are all over the world and I charge for my products in USD. About 40% of my customers use PayPal and whenever I transfer money back to my GBP bank account and I end up paying c. 2.5% in FX fees. Last year that added up to about 2k USD which is really frustrating.

How have people worked around this? I've heard Revolut / Transferwise are developing USD bank accounts for people in the U.K. Have people used them?