Weglot Translate is a multilingual plugin to be able to translate your wordpress website and add extra languages. Weglot Translate is known for a particularly easy set up but also for implementing the best practices in multilingual SEO, delivering performance and allowing the user to choose between automatic and manual translations.
Emre from WP Fastest Cache and Remy from Weglot have been working together to make the two plugins fully compatible.
This means that WP Fastest Cache will also cache perfectly the multilingual pages : All pages in all languages will be cached and served quickly by WP Fastest Cache.
This has been giving really good performance for several websites that use both Weglot and WP Fastest Cache.