Hi,
For a long time I’ve experienced slow page load on my contact page. I thougt it was due to my contact form (Forminator), and I couldn’t load the page at all in Cornerstone.
Due to the issue I made a new contact page without the contact form - only with some text, phone (link) and e-mail (link) and my social elements - which are Font Awesome icons (brands) with a link to my social URLs. Again I experienced that I couldn’t load the page in Cornerstone, so I tried to manually remove the column with the social elements, and then the page loaded immediately.
So there’s either a issue with your social element or the brands icon from Font Awesome (I guess it’s the first one).
I can’t give you a link to the page since I’ve removed it, but consider this as info…