@ismh @siracusa One of the tricks, as I learned yesterday, is smaller instances subscribing to ActivityPub relays via event-relevant hashtags. Relays like FediBuzz will let your instance subscribe to specific hashtags, rather than the default firehose of all posts. That way the smaller folks can get more timely posts and things get pushed out to the wider fediverse quicker (as long as others are subscribed too).
https://relay.fedi.buzz/