That is disappointing. This makes it *really* hard to use TextMate with LaTeX source code.

How are others checking their spelling when writing LaTeX source?

I have no performance hits here. Can you perhaps share with us, or email me, the troublesome file, along with your comp's specs? Or is this a general phenomenon?

Upon reflection, I realize I don't have cocoAspell installed any more. I just use the built in spell-checker. Maybe you could try disabling cocoAspell and seeing how the performance is then?

Btw, what are the advantages of cocoAspell?