Thunder Page Speed Optimizer , 81 reviews

Great app! They've managed to speed up my website loads by 50 points on google page speed test, making it much faster. Plus, their customer service is top notch! I highly recommend it.

Great app and support. I had some issues when I optimized the theme, and Georgi from support was amazing! He really helped me, and now everything works as it should. My store mobile speed went from 39 to 57 which is not bad for a free app!

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!

This app gave great results from my homepage, raising the score from 47 to 77.

I had a few doubts, But the Dev, George, gave me great advice on what I should be doing.

Was all very simple in the end.

Thanks George

Amazing app! Super easy to set up, everything was automated and really increased the load speed of our store!

This app will always be installed for my store, Somehow my speed went 90 for free immediately i highly recommend

Wow, I've used a lot of apps to speed up my store. Half of them seem to do the opposite. Thunder is really very good. Had a little glitch in setup and Georgi from the support was fast, efficient and friendly. 5 stars all round from me :)

This app is must have! I launched my shop soon and was waiting to see the speed score. When I saw score 23 I was shocked. I'm not so tech person and didn't know where to start from.... Then I saw Thunder Page Speed Optimizer. I just deside to try and to see if anything will change.
This app exceed my expectations!!!!!
My score jumped from 35-60 on PageSpeed Insights! The score gets almost double and this is without me doing anything! I'm so greateful for this and I really think the score will get even higer, because shopify needs one week to show the new score.
Highly Recommend!!!

Increased our speed. We got some help from the team, Georgi, and felt like he took great care of us and made things work great!

Easy to use. Fast page speed. Excellent app. I want to give 10 stars................................