Subject: Re: bug#56682: Fix the long lines font locking related slowdowns

From: Eli Zaretskii <[email-masked]>
Date: Fri, 05 Aug 2022 13:49:07 +0300

> Date: Fri, 05 Aug 2022 08:21:30 +0000
> From: Gregory Heytings <[email-masked]>
> cc: Eli Zaretskii <[email-masked]>, [email-masked], 
>     [email-masked], [email-masked]
> 
> > BTW, 'M-> M-<' triggers some puzzling long wait (~3 seconds) both on 
> > master and with my change, every time I issue this sequence of commands.
> >
> 
> This is caused by show-paren-mode.

Interesting.  I guess the problematic part is the code in
show-paren-mode which searches for the matching parenthesis, not the
part that puts the overlay on the buffer?  IOW, does making
blink-matching-paren-distance smaller shortens the delay?