bug#71644: 30.0.50; Severe slowdown in larger files with markers beginning in emacs 29+

[Ihor Radchenko]

Eli Zaretskii <eliz@gnu.org> writes:

> I cannot reproduce this on my system, with the current master branch,
> i.e. Emacs 30.  I _can_ reproduce this in Emacs 29.3, where indeed
> expanding any of the two abbrevs takes about 0.5 sec to show on the
> screen.  But in Emacs 30 it's instantaneous, even though I used an
> unoptimized build of Emacs 30.  Maybe the reason is that Emacs 30 now
> uses Org 9.7.4, whereas you have a local installation of 9.6.30?

What if you add
(setq org-fold-core-style 'text-properties) to your reproducer?

-- 
Ihor Radchenko // yantar92,
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