it really, really varies by implementation. mastodon is popular (for some reason), but far from the most efficient activitypub server. akkoma derivatives are mo

it really, really varies by implementation. mastodon is popular (for some reason), but far from the most efficient activitypub server. akkoma derivatives are more limited by postgresql's IO performance than the phoenix app itself. unfortunately, what people know is a really slow rails app. i haven't personally operated a misskey derivative, but based on my experience writing network servers on node.js it probably performs better than rails XD the same applies for clients. there are nice native apps and some pretty efficient web clients, but they aren't the default on the most popular server software so nobody uses them.