The rewrite of org-mode-flyspell-verify in commit
4a27c2b4b67201e0b23f431bdaeb6460b31e1394 (Nov 21, 2013) makes navigating
org-mode files with large chunks of text very slow.

For instance, I started up a minimal emacs:

/usr/bin/emacs -Q -l ~/config/minimal.el

...where minimal.el is...