From mboxrd@z Thu Jan  1 00:00:00 1970
From: Angus M <anguscmelville@gmail.com>
Subject: Re: long code blocks making Org Mode very slow
Date: Wed, 15 Jul 2015 12:22:24 +0000 (UTC)
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To: emacs-orgmode@gnu.org

I've just discovered that the slow-response is definitely related to font
locking.  If I type M-x font-lock-mode to toggle it off then the typing lag
problem is solved.

According to the Emacs documentation:
'In Emacs 21 and later, turning on font-lock-mode automatically activates
the new Just-In-Time fontification provided by jit-lock-mode.'

It would appear, therefore, that just-in-time fontification is not taking
place in the code block with the whole code block being fontified at once -
and hence the delay.

Any help to confirm this hypothesis and how to enable just-in-time
fontification in the code block would be appreciated.

Angus M