I run Emacs on Mac OSX, and I'm trying to switch from Emacs for Mac OSX to Emacs Mac Port.

I use (notmuch)[http://notmuchmail.org/emacstips/] for email. It works perfectly on Emacs for Mac OSX.

But on Emacs Mac Port, it's prohibitively slow. Also, the message list is messed up, double spaced and with strange boxes:

<img src="http://i.imgur.com/FZIMYQ6.png" alt="display irregularities" style="margin: 0px; padding: 0px; border: 0px; max-width: 630px;">

I'm using the exact same configuration as I do with Emacs for Mac OSX.

Does anyone know what's causing these problems, and how to fix them?

Thank you so much in advance.