Thanks for responding, and sharing more of your experience! I'm glad to hear SWIS is working well alongside WP Rocket. We've had a long history of working with them on compatibility even though some see us as competitors with Imagify vs. EWWW IO.
We strive to work with others in our market to make things better for everyone, and prevent plugin conflicts that can frustrate and confuse folks.
Ultimately, our goal is to make your site faster, and if WP Rocket helps with that, fantastic! We're not trying to poach folks from WP Rocket (though that happens), we launched SWIS because we had most of the tools already built, and because our customers were asking us to branch out beyond EWWW IO. Really excited to continue improving SWIS to make website performance even simpler!