Google Translate:
First of all, the ActivityPub system is not suited to something like Misskey, which flows at lightning speed.
It was originally designed to connect blogs, small-scale SNSs, and wikis.
How can it handle the TL hell where tens of thousands of requests fly in per second?
It’s based on the idea that it would be nice if various small services could send each other updates, so it’s quite costly.
I took it as a translation issue and misskey was the one that was designed for less traffic. The next sentence kind of clarifies. “it was designed…” for slower things like wiki updates means misskey.
I was confused at first too but that’s the only way it makes sense. I don’t know the history of misskey though so I could be wrong.
Thanks for posting the translation though! Super helpful