This is just to followup from my prior post on latencies increasing with increasing uptime (see here).
There was a recent update to lemmy.ml (to 0.19.4-rc.2) ... and everything is so much snappier. AFAICT, there isn't any obvious reason for this in the update itself(?) ... so it'd be a good bet that there's some memory leak or something that slows down some of the actions over time.
Also ... interesting update ... I didn't pick up that there'd be some web-UI additions and they seem nice!
Well, I've been on this instance through a few updates now (since Jan 2023) and my impression is that it's a pretty regular pattern (IE, certain APIs like that for replying to a post/comment or even posting have increasing latencies as uptime goes up).