SW‑Page Speed Image Optimizer

SW‑Page Speed Image Optimizer

by PerfectApps

Site speed & image optimizer, lazy load, minify CSS JavaScript

4.8 of 5 stars(75 reviews)

Shopify page speed optimizer

Image Compression, Theme Optimizer will improve store speed & metrics on PageSpeed Insights. Automate & optimize daily without login to app

Minify theme for website speed

Page speed booster with preload. Reduce size of critical CSS inlining, JS (JavaScript), font cache, theme asset file. No coding required.

Lazy loading technology

With LazyLoad, you can defer the loading of PNG JPG images, pages until users need them. Vital for mobile web boost and increase conversion.

About SW‑Page Speed Image Optimizer

Shopify page speed optimization

Swift is a page speed solution for Shopify store owners. Swift offers an innovative approach that focuses strongly on Google Lighthouse, Core Web Vitals, and Shopify best practices to speed up your store performance in a few clicks.

Why is Online Store Speed important?

40% of people will abandon a website if it takes more than 3 seconds to load. That’s why every merchants should be optimized their website speed and have a powerful caching system at its core. A fast-loading site is more likely to rank higher in search engines (SEO), keep visitors stay longer, and increase conversion.

Advanced Shopify image compression

  • Using Smart Lossy compression technology to compresses and optimize images, which minimizes large image size without reducing their quality.
  • Image optimizer helps your store loading a 50kb image instead of a 500kb image without change of quality, lighter means faster.

Make your files lighter with minification and JavaScript deferral

  • Swift helps you to minify the JS, inline critical CSS , font, theme asset files to reduce page size and make them load faster.

Media files loaded only when needed

  • With our Lazy Load technology, you can automatically defer the loading of images, leaving them ”off-screen” until users need them.
  • Lazy-loading is a brilliant way of optimizing both perceived and real performance.

Auto Optimize process with new images and files to save tons of time

  • Instead of manually optimizing images & files, you can select our auto-optimization service. This allows you to optimize new images and files fully automated that you upload for your store, so you can focus more on your sales & business.

Speed up next-page navigations with preloading

  • Analyzing and predicting what page a visitor is going to visit next on a site or which link is most likely to be clicked. Then Swift preloads those contents in advance and delivers the page right after it is requested. Therefore, users would experience a very short waiting time.
  • This automate preloading technology makes your store faster 600 milliseconds on average from page loading time. By using AI, Swift provides the level-up prefetch techniques to increase 3x faster page speed more than other apps.

Site speed analysis and suggestions

  • We analyze the performance of apps installed in your store like Pushowl, Tidio, Free Trust Badge, Quick announcement bar, etc... to give you suggestions for increasing mobile speed and desktop speed.

Additional benefits

  • No affect on your theme: Swift always saves your settings fully automate to help you undo every change that was made with Swift in a single click
  • Ease of use: Nothing special here, no coding required, just follow the instructions and click.
  • World-class support

Integrates with

  • Page Speed,
  • Google Speed,
  • Pagespeed Insights,
  • Google Analytics,
  • Compress Image,
  • Lighthouse

Media gallery


Pricing 7-day free trial



  • Speed ​​up your store by preloading next-page
  • Next-level preloading page based on Google Analytics
  • Boost branding with the loading screen



  • All in FREE
  • Optimize image (Free 1000/mo)
  • Minify JS and CSS files
  • Lazy Loading
  • Auto optimize daily
  • Free site speed analysis and suggestions

* All charges are billed in USD. Recurring charges, including monthly or usage-based charges, are billed every 30 days.

4.8 of 5 stars

The overall rating reflects the current state of the app. It accounts for all app reviews but prioritizes the most recent ones.
  • 5 of 5 stars
    92% of ratings are 5 stars
  • 4 of 5 stars
    3% of ratings are 4 stars
  • 3 of 5 stars
    1% of ratings are 3 stars
  • 2 of 5 stars
    0% of ratings are 2 stars
  • 1 of 5 stars
    4% of ratings are 1 stars

Most recent reviews

Ivan Jones Artist

This app seems to have improved the speed of my website by optimising images and my theme. It is a little expensive but worth the money to keep the site functioning optimally and the lazy loading seems to have been approved by Lighthouse.

Developer reply

April 26, 2021

Hi there,

I'm Jonathan from Swift ‑ Page Speed Optimizer Support Team. We would like to thank you for such a wonderful review of you.

Your feedback really means a lot to our Swift team and we have been trying our best to develop and improve Swift to serve you and meet your demand.

Please do not hesitate to let us know if you need any help via live chat or email us at support@perfectapps.io

Swift ‑ Page Speed Optimizer Support Team


We installed this app to help optimize our store and the support and results we received were great! We had a few questions after the initial optimization and Tommy through their support chat not only helped us with our questions he also gave us some great tips to further optimize our store. We are very grateful for this option and would highly recommend this app.

Developer reply

April 21, 2021

Hi there,

I am Andrew from Swift ‑ Page Speed Optimizer Support Team. Thank you so much for your greathearted review.

Here we are working very hard every day to provide you with the best service. Thank you for the loving words you've shared, and thank you for being the best part of Swift.

If you have any further questions, please feel free to contact us via our live chat, or email us at support@perfectapps.io, we will get back to you soonest.

Swift ‑ Page Speed Optimizer Support Team

SoHot Swimwear

Just installed app. I had a few question and Tommy in support was awesome. I will update in 30 days.

Developer reply

April 16, 2021

Hi there,

This is Daniel from Swift ‑ Page Speed Optimizer Support Team. Thank you for taking the time and writing this review for us.

Your opinion is very important we will continue to improve our service to always guarantee the best quality.

If you have any questions or need help, feel free to contact us at any time via our live chat or email us at support@perfectapps.io

Swift ‑ Page Speed Optimizer Support Team