>> When in a scratch buffer, if I enable flyspell-mode, I can type fast enough
>> that Emacs can't insert the characters as quickly as I can type.
> I have written a few hundred thousand words of flyspell'd english text in
> the ns port, primarily in text-mode and org-mode. Flyspell isn't fast, due
> to a known annoyance with the ns port event loop, but it is certainly not
> unusable for me (and for many others here), using relatively modern but not
> top-of-the-line hardware. I would love to see if the mac port's approach
> could improve this; it is far and away the most exciting potential of the
> mac port (to me).
> Do you still have this problem with flyspell if you run emacs -Q?