Move to a new, smaller, instance. You can still use lemmy.world as though it was still running at full speed. You can still post to lemmy.world or other federated communities and you experience won’t be so painful.
Lemmy.world is experiencing an influx of Redditors and with us good Redditors come our awful trolls. Growth, along with DDoS attacks have plagued the site since I began using it.
For all the annoyance, a silver lining is that lemmy.world is testing lemmy at a relatively high scale lemmy doesn’t see anywhere else and so aiding in the development of the software and architectural guidelines for instance management.
That’s why I joined my local “area of my country” instance. I just need to subscribe to all my communities here and I’ll be good. The app I use (Memmy) let’s you easily switch between profiles on any instance too.
I wanted to stay with World. But they are literally constantly having severe problems (errors, voting, comments). Gave them many chances. I'm sorry World, but I probably would abandon Lemmy if I had to stay, it's just not an enjoyable experience.
Maybe it's not even possible to keep a large (targeted) instance working with current limitations and tools? Hope they figure it out. I'm rooming with Stux at Geddit, he's cool. So many cats...
I moved to sopuli.xyz because of this. I can still subscribe to all the communities I like so no point in staying in an instance that's constantly down.
Now that I've found a workable userstyle that gives kbin the same information density as old reddit (Narwhal) it may be time to switch over here. For better or worse kbin's funding situation seems a bit more ironclad. Also the fact that I can check Lemmy communities and do Mastodon at the same time is pretty attractive.