Requests take 20+ seconds to get CACHED (!) response from cloudflare. Blocklist?

Hi there!

On September 7 we’ve experienced a very bad problem

Our Cloudflare “enhanced” website, [packhelp dot com] became totally unusable to some of our users.

Getting cached (HIT) responses was taking 20 or even 30 seconds to return the resource.
Static asset download was also slow. It took ~5 seconds to download a small js file.

At least from two locations: Warsaw / Poland

Since Cloudflare is our front web server, how can we now that more of our users are not treated that way? Are there any response metrics we can see?

What can we do avoid that problem?