In 2015, Google created the Accelerated Mobile Pages (AMP) technology.
Using AMP allows you to increase page loading speed multiple times. Also, the mobile page rating according to Google PageSpeed Insight approaches 100.
The store loading speed changes due to:
- Google caches all AMP pages on CDN servers worldwide for quick access
- AMP restrictions on the size of loaded files reduce the amount of data transferred
- Limited use of js reduces the number of calls
For Shopify, a quick way to improve page loading speed is to install an app.
Google published a review of AMP apps for Shopify.
Besides the app, there is an option to use an AMP template. At the link you can find a simple example of a Shopify store built according to Google AMP — pharmaboosters.com. Note the rating for mobile — 91 and for desktop — 100!

