I've noticed a distinct degradation in speed on lemm.ee since the upgrade.
The website seems fine but any app appears to struggle with the lemm.ee site.
The only exception appears to be Voyager app and it may be that as a web app it doesn't appear to have the same problem.
Jerboa can't login, says can't connect to instance, this is not a specific v19 issue as I have an account on reddthat.com which is also running v19.0 and that logs in without issue.
Voyager struggles to load my profile.
I migrated here from fmhy and then feddit.uk after it appeared to be abandoned, I'd really not like to migrate again but it's starting look like that's the only option ;-(
Latest stickie post and all issues appear to be resolved.