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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Set inhibit-compacting-font-caches non-nil on MS-Windows
Date: Sat, 03 Aug 2019 15:20:54 +0300
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I think we should make this variable non-nil by default on
MS-Windows.

There are quite a few bug reports in the bug DB which all complain
about slow redisplay on MS-Windows, and were resolved by setting this
variable non-nil.  So it sounds like on MS-Windows the compacting of
the font caches is not a good idea (the original code was written to
fix a problem observed on X).

Any objections/comments?