Flyspell mode slowness

[Alberto Simões]

Hello

I am running Emacs compiled with NS under MacOS, and I find the
flyspell mode quite slow.
I am not sure if the problem is with rendering (you know, making all
those red lines below words), or if it is a problem of interaction
with ispell.

What I have:

[ambs@rachmaninoff emacs]$ ispell -v
@(#) International Ispell Version 3.3.02 12 Jun 2005
@(#) Copyright (c), 1983, by Pace Willisson
@(#) International version Copyright (c) 1987, 1988, 1990-1995, 1999,
@(#) 2001, 2002, 2005 by Geoff Kuenning, Claremont, CA.

(hand compiled)

and, in my emacs (also hand compiled):

   Ispell Program Name:  /opt/local/bin/ispell

Thanks for any hint
Alberto
-- 
Alberto Simões