Usually, my web is blazing fast - it loads under 2 seconds. And somethimnes, once in a few days, it loads extremly slow - 30 or more seconds. Its unusuable during that period, which last 30 minutes or so.
I cant detect what is happening; my hosting is premium quality and price, they says its all good.
GTmetrix looks like that
Any ideas please? I am thinking about abandoning Cloudflare because of that.