you signed up to one of the biggest instances, this is not like reddit, its a federation so it does not matter as much what server you are on, however adding load to the big servers is causing BIG issues for them.
It's actually causing issues to other instances too. Lemmy.world is often responding 429 to our requests for fill in comments and posts. Meaning those messages don't get processed until some time in the future.
But, I can still understand why people flock to the flagship instances. Just on the kind of network, it's not ideal.