Importing WooCommerce products is slow
Importing products in bulk, for example using WooCommerce's CSV importer, is slow when WP Rocket is activated
This can also happen when importing data into other content types with a plugin like WP All Import, or similar.
When content on your site is updated, WP Rocket will perform some cache purging. So if you import a lot of data which triggers posts/products etc to be updated, the cache purging will be triggered frequently. Additionally if you have enabled preloading, this will also be triggered.
This can lead to slowness, causing the import to take longer.