Hi,
I have over 5 years expericne in wordpress:
This service includes:
Premium original license WP Rocket Plugin value $49 (lifetime you can update version)
Premium STACPATH CDN (if your need) value $10 (lifetime), You save $59
also, I enable next-generation image format, Minify JS, CS, Reduce HTTP Request, add expired headers, Leverage browser caching and defer parsing JavaScript, lazyLoad images, Add Expires headers, optimize database, GZIP Files Adding, Font Optimization, PHP update version, Jquery Update version, Google font optimization, Image generate for all divices and many more, Bug fix and tips how always speed fast.
Then your website
GT Metrics:
PageSpeed Score: 95+
YSlow Score: 95+
Google lightspeed:
Mobile: 80+ (Because showing GT Metrics cookies domain.)
Desktop: 92+
Pingdom: 90+
I think your website keep super fast
Regards