Investigate slow performance after switching to Auto DevOps

After switching to ADO for this repo, @dimitrieh has noticed as a degradation in performance with some pages taking upwards of 12 seconds to load. From slack @DylanGriffith mentioned:

We used to deploy to Pages. The routing layer for it now should be pretty fast with just two Nginx servers procying requests through. But it's possible pages was faster. Latency can depend mainly on where the server is running. Maybe it used to run in Europe but now runs on US West? We can dig in to find out if there is are some more options to speed it up. There may be missing configuration for caching or perhaps we need minification enabled. For this type of website normally you'd want to deploy to a globally distributed CDN. We could layer that on top if we wanted as well which would be even faster and probably help protect us from DDOS.

You can also run this through some services to give you some performance metrics. Don't remember any good ones off the top of my head but you just give them your website URL and they call out what you're doing wrong.

I am not experiencing this issue myself. Could it perhaps be location based somehow?