Your translated pages are serving yesterday’s prices
A translation proxy caches your page before it translates it. Anything that changes between visits is frozen in the translated copy, and the usual fixes do nothing.
Category: Performance
A 524 is your server admitting it never answered
Gateway timeouts get blamed on the CDN. The CDN is reporting a fact about your origin, and usually about your PHP worker pool.
The SSL certificate went on and the site got slower
Enabling HTTPS should cost you a few milliseconds. When it costs seconds, the certificate is rarely the culprit on its own.