After importing a bunch of new photos I run a batch rename for each day in the session. Usually I don't attend the process (*), since I do as soon as I'm back home and I have other things to do; but recently I noticed it's very slow: roughly 12 minutes for 1000 files (MBPro 16", macOS 11.6.5). Even considering that multiple files for each photo (e.g. caches) have to be renamed and an operation in the database is involved, it looks to me slower than necessary.
Honestly it's not a big issue, but is it possible to do something to mitigate it?
(*) I see there is an old comment (twelve years ago), so perhaps it's really an old issue.