I just installed WP rocket 3.17.0.1 and the plugin works fine. I don’t see any compatibility issue. The new lazy rendering feature is also enabled by default. Could you please elaborate on how can I replicate the issue on my end. Or please share your website link so I can check.
With the last version of wp-rocket, I aggregate this global css and affect when opening the popup of your add-on, which is not shown when clicking and entering the register.