I've been getting page changes in minutes. Is it my link or the site? Other pages in my browser are fast.

I think it is because the upgrade means that all the indexes are being rebuilt.

I'm far slower today than previously; I hope indexing is in progress now more than usual.

Strange is right -- the latest upgrade required yet another reindexing. Fortunately that's finished now and everything should be back to normal.

We looked into ways to improve database performance while the reindexing was ongoing, but there's not a clear solution; I hope we don't need to do it very often in the future.

Yes, much better.