It's not working even on Shopify Dawn theme... He didn't even tried to make it work. Each consequent "fix" will decrease my store speed to around 50. Even if the app doesn't work, they still charged me. The first answer was a recommendation to just uninstall the app, which say a lot about their ethics.

Works like a charm and worth your money!

Great app, it actually changed the scores on pagespeed. Love the instant page load feature.

I have tried SEVERAL so called Page Speed tools. Some of them were very expensive! Each of the tools I've tried provided varying levels of effectiveness (from very good, to terrible). Some even broke my theme entirely. On a whim I tried this one. WOW! Our pagespeed scores have come up nicely. Not mind-blowing, but an impressive bump. We've moved from unacceptable speed levels to above average speed levels. And our Web Core Vitals are spot on now. How can something this inexpensive work so well? I haven't got a clue. But I can say this with assurance -- this app is a keeper!

Amazing App, the only one that significantly reduced the LCP of my Website. The customer support is very fast and reliable. Definitely recommend!

Fantastic app. Highly recommended!

As I prepare for the busy season, I'm glad I have this app take care of the speed issues. It's one less thing I have to worry bout this year.

Al principio no entendí la aplicación, pero Sam, de soporte, me la explicó. También se tomó el tiempo para optimizar todas las aplicaciones de la tienda y ayudar con el tiempo de carga. Gracias Sam.

After going through multiple sprints of speed optimization, I'm happy to say that this app is the best I've found. They even email you a link to verify the improvements on Google. I wish they worked with CSS too.

La velocidad es muy importante para los compradores en línea. Estoy feliz de haber encontrado esta aplicación a tiempo. Ayudó con la velocidad. Desearía que hubiera una calidad de soporte similar en todas las demás aplicaciones que tengo.