This was sort of a Hail Mary pass, but the slowness and the constant refetching and missing events was driving me up the wall.
The https://jumble.imwald.eu/ relay selector is a bit wonky, now, but do you notice the paging being faster and the threads being more complete?
Discussion
i examined jumbles caching system, that was def why it's so fast. cody knew what he was doin. i'm experimenting with android caches. amazing how much it can just hold in memory.. and supplement with quartz large cache for persistence.