Thunder Page Speed Optimizer , 79 reviews

This really an amazing super app which can significantly speed your store in just little mins.

I recommend everyone install the app,in addition to their amazing customer support.

Thank you thunder to help speed up my store easily.

There were some minor issues in the beginning, but George handled them promptly and efficiently. Considering this is a free app, the support is better than most premium apps. George went above and beyond to handle everything and together we managed to improve my website's PageSpeed to an all time high score, now passing all Core Web Vitals metrics. I recommend this app to anyone in need of improving their PageSpeed score in a safe and efficient way. Be sure that you're in good hands with George and Thunder app.

Nice App!
The best service ever.
They have manually optimized my website, and got a significant improvement.
GOOOOOD JOB guys!

App functionality is perfect. Has many interesting features. They were some bugs which were frustrating but the app developer helped us throughout the process and helped resolve the issue.

100% for support!

I recently started using this app for my store, and I've been absolutely blown away by the results! Within 15 minutes, my pagespeed score DOUBLED (40 to 80!!!) and my speed score in Shopify has been increasing every day. Special shoutout to George. His expertise, quick responses, and willingness to help went above and beyond my expectations. He even implemented some custom optimizations for my store. If you're scrolling through the app store, deliberating over which speed optimization app to choose – stop right here. With blazing fast improvements and stellar support, you've got all you need. Full five stars from me!

I recommend this app. They optimized my site, and above all the customer support is fantastic, the guy who helped me optimized my site even more

Amazing app. Am the designer / owner of ourhatsdeservebetter.com I was stuck with poor performance linked to technical issues I could not deal with. 18% overall improvement on my pages, home, collections, products, ..., measured on PageSpeed Insights and lighthouse, both on mobile and desktop view, without impact on site visual quality. So easy to use that I just run it without the need to require technical support. And it is FREE!... I don't understand the business model but I love it!

Probably one of the best app if you're looking to speed up your shopify theme, it helped us increase our score by 21 points!

Very Helpful app it really increase the speed and the Customer support is also very good and excellent Help a lot . Thanks George....

Georgi from the support team is wonderful, he spent ages trying to help me optimize my site and improved the page speed significantly. I highly recommend this app! :D