> I wonder if it would be possible to record the window ids of the
> windows overlapped by the completion pum and only redraw those with
> NOT_VALID rather than all of them?

Yes, if you are careful computing those windows (with status line and
vertical separator).  It won't help much if the window that is slow to
redraw still needs updating.

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                                  -- Steven Wright

 /// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net   \\\
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