Flash: Page Speed Optimizer , 13 reviews

The huge problem with my store speed and third party app code was quite disturbing knowledge for me
Which this app and specially Marc the owner of this app did for me۔
Thank you so much Marc . very satisfied thanks again
Recommended to all good work

Pagespeed improved from 40 to around 80. Would definitely recommend if you want to reduce unused Javascript

I recently tried out this app and found that it worked well on most themes, but unfortunately, it didn't work on some older themes on mobile version. so I reached out to the support team for help.

I received a prompt response via email and was also invited to join a Slack channel where the support team was able to provide me with the necessary assistance. They are helping me to identify and resolve the issue, which is a great relief.

Overall, I would recommend this app to anyone who needs remove unused Javascript and to improve overall speed of the website. Just be aware that it may not work on all themes. However, the support team is very responsive and helpful, so if you do encounter any issues, they will be able to assist you in resolving them.

Excellent app for managing js, removing from specific pages etc. Pagespeed has improved significantly.

Most of these page speed apps don't do much, this one seems to be the real deal. The developer was very responsive to communicate and was able to help get things going within 24 hours of setup. highly recommend.

In 24 hours, Marc has helped me improve the performance of my store getting from 70% to 92% on Google Lighthouse because of image issues a lot of shopify stores are facing. He also answered the questions that I had about the app and the customer service was fluid through Slack. For this efficient customer service, I recommend using the app. Thank you Marc.

The Flash PageSpeed Optimization app is a game-changer for my Shopify store to optimizing external URLs! The app is user-friendly and easy to navigate.
I was also impressed by the excellent customer support provided by Marc. He was patient, knowledgeable, and went above and beyond to address all my concerns. Thanks to the app and the support, my website is now faster than ever before, providing a better user experience for my customers. I highly recommend this app to anyone looking to improve their website's performance.

UPDATE:
They replied and advised me to uninstall the application.

After about 15/20 days they contacted me to tell me that the problem was solved and actually now it works very well.

Thank you

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The application is great, but the support service is terrible.

I have a small problem with the app, the dashboard no longer works for me.
I wrote him 3 emails and 2 messages through Shopify, a week later still no one has replied to me.

From what i can see, I think it's made a positive difference.

An improvement to the App would be to more visibly show the before and after in terms of speed text.

WARNING! This app adds some scripts to the template and looks real but, in reality nothing changes. It charged me while doing nothing and the support never replied to my question for help. I suspect those 2 initial reviews which tricked me to trust the app are from the developer.