I think this situation is likely unique to me at present, but I'm seeing unexpected and random lag when replying to a thread, and generally navigating around the site. At the worst, it's 5 seconds to respond to opening up the new post or new reply editor, and the same when using the navigation buttons to move between various pages of flarum.
Currently I'm using cloudflare - no difference if disabled, and the recache extension - again, no real difference if disabled.
Very odd, and noticed this starting to happen yesterday. Anyone else experienced this ? Appears to be the same between browsers.