Hi, After upgrading to 9.7 (still on Emacs 27.1), I'm seeing very long waits when trying to use tag completion in large files, whether with C-c C-q, %^g in capture templates or running (org-get-buffer-tags) directly. This applies both to 9.7.1 and 9.7.2 (on two different machines with similar environments, both older hardware). On repeated tries I have also had several freezes.
In my largest file, it takes over four minutes. At ~65K lines and loads of tags, the file is admittedly badly in need of some pruning and archiving, but still, before the upgrade, Org handled tag completion here with maybe a couple of seconds of delay at most, and now it's basically broken for me. Anyone else seeing this? Yours, Christian