Is anyone else seeing really bad mobile speed tests on their Squarespace sites? Every one I test has good desktop speed tests (80+/100) using PageSpeed insights but really bad on a mobile (under 40/100), some under 30...
Does anyone have any tips how to improve mobile speed?
Main issues seem to be the following:
Eliminate render-blocking resources
Remove unused JavaScript
Serve images in next-gen formats
Remove unused CSS
Ensure text remains visible during webfont load
Reduce the impact of third-party code (all seems to be Squarespace and Adobe Typekit
Minimize main-thread work
Serve static assets with an efficient cache policy (seems to be to do with Squarespace CDN)