on Just Publishing Advice:
Does your site pass the Google site speed test for mobile?
Website performance is critical. If your blog or website is slow to load, it is for bad for user experience.
No one is going to wait five or ten seconds for your site to load. Internet speed or download speed needs to be fast.
A slow website will increase your bounce rate and lower your conversion rate.
When you do a website speed test for your site, your desktop speed is usually much better than your mobile speed.
t is because most blogging and website programs are reasonably well built for desktop viewing, and use responsive design to deliver a mobile version.
While this is a practical solution, it has a significant drawback.