Exclude certain classes from the cache

Hi there,

We’re having a problem with WP Fastest Cache caching foreign currency on product pages meaning that people are seeing the incorrect currency.

This wouldn’t too big of a problem, but it seems like some of the product pages cache crashes / automatically clears the cache then if someone from a different currency visits the page first it will show the wrong currency for the next visitor.

So, the two solutions I can think to fix this would be exclude the price based on the class or figuring out what is causing the cache to disappear on the product page periodically.

Any ideas on either would be super helpful, thank you!