NitroPack can't be used with another caching plugin that has any of the following features enabled:
Image lazy loading
The overlapping functionalities can cause our optimization mechanism not to work at all.
That's why we don't recommend using NitroPack simultaneously with another caching plugin, like (but not limited to):
a3 Lazy Load
Comet Cache by WP Sharks
Fast Velocity Minify
Smush (only their lazy load option must be disabled, not the entire plugin)
W3 Total Cache
WP Fastest Cache
WP Fastest Cache Premium
WP Super Cache
WP-Optimize (only their page caching must be disabled, not the entire plugin)
For more details on compatible plugins, services, and hosting providers, please refer to the "Compatibilities" section in our Help Desk.