We are getting reports from users of very slow load times on pages that have resources cached by Cloudflare. When inspecting the browser activity on sessions where these issues are occurring, it takes 15s to load the files with issues, which are generally relatively small CSS files. Bypassing the cache for these files fixes the problem entirely.
Puzzlingly, this seems to also be browser specific (sometimes Safari will be slow while Chrome is fast, sometimes the opposite.)
The url of the site is https://covidscholar.org.
We would appreciate any guidance that the community can offer. Thank you.