bug#72830: Big rectangular selections are slow

[Eli Zaretskii]

> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Fri, 20 Sep 2024 19:07:29 -0700
> Cc: Michael Heerdegen <michael_heerdegen@web.de>, Eli Zaretskii 
> <eliz@gnu.org>, 72830@debbugs.gnu.org, 
>       Juri Linkov <juri@linkov.net>
> 
> Mattias Engdegård <mattias.engdegard@gmail.com> writes:
> 
> > - `select-active-regions`: as mentioned, it slows down rectangle
> > selection massively and is alien to non-X11 platforms so I'd suggest
> > it be set to nil by default on macOS and Windows at least. Not sure
> > what to do on TTY frames.
> 
> I see no problem with making this change on macOS.  I have no idea about
> anything related to MS-Windows, so I can't comment on that.

I can test on MS-Windows if someone tells what to try and what to pay
attention to.