Great news - the server overloading is fixed, Lemmy.ml & Lemmy.world are delivering posts and comments far better!

There was a bug in Lemmy where servers with large numbers of subscribers did a SQL query that overloaded the servers. Lemmy.ml and Lemmy.world were heavily impacted, given how many new instances have been added with people who subscribe to those big server communities!

From Lemmy.world:

I have been spot checking the comment replication on recent postings and messages are flowing far better.