Page loading/scrolling issues

I have some customers with IOS that complain that our website does not load or they can not scroll without the website getting glitchy.

How could I fixx this issue? Most of them come on our website via Facebook ads. I followed these steps with 3 ios devices and I also get some issues:

Reconstructing the problem in another in-app browser

  1. Make sure you have the Google Search app installed on your mobile device.
  2. Copy the web page URL and paste it into the search bar of Google Search’s in-app browser. Note : The app will load the web page in the Google Search’s in-app browser.
  • If you can reconstruct the problem in the Google Search app, it is likely caused by a bug on your website.

So it seems to be a bug on our website. Have contacted Funnelish Support. Did anybody else had this issue before?