Priority Elements

In WP Rocket, there are two types of Priority Elements:

The critical images above the fold that are optimized by the Optimize critical images feature.
The HTML elements below the fold that are optimized by the Automatic Lazy Rendering option.

These elements are automatically purged in most scenarios, but when needed, both can be manually purged using the Clear Priority Elements options in WP Rocket's top menu, like this:

clear priority elements button