Hi @addy085,
When you say “mobile theme”, do you mean a responsive layout where what is displayed and how it is displayed is done so via CSS and media queries?
The Pegasaas “critical CSS” engine does support responsive design. So in that scenario, it is compatible.
If you’re referring to “adaptive” design, however, where a completely different HTML layout is displayed to the user based upon the user’s detected device, then Pegasaas, nor any other caching plugin, would be appropriate for your website.
If you’re referring to the “Revo” theme found at Themeforest (https://themeforest.net/item/revo-multipurpose-responsive-woocommerce-theme/18276186), it appears to be a “responsive” layout. So I would say that yes, Pegasaas would be compatible with this theme.
As always, if you find that it is not the right fit for your website, you can always uninstall the Pegasaas Accelerator plugin, and it will instantly revert your website back to its original state.