Re: emacs rendering comparisson between emacs23 and emacs26.3

[Eli Zaretskii]

> From: andrés ramírez <address@hidden>
> Cc: Dmitry Gutov <address@hidden>,
>       address@hidden,
>       address@hidden,
>       address@hidden,
>       address@hidden
> Date: Sun, 05 Apr 2020 19:16:05 +0000
> 
> Whet I create an
> emacs lucid frame and move to the scratch buffer and I write the
> character 'w' (and also other identified characters but 'w' is the worst
> case) that character is duplicated and also emacs lags for a few
> seconds.

I suggest to run Emacs under perf and see what processing takes most
of those few seconds.