[TxMt] performance ceiling

I'm interested if anyone else can duplicate this behavior.

It seems like I'm hitting some kind of performance ceiling when typing in lines with more than 400 characters.

1. type "lorem" then tab. 2. click in the middle of the generated text-block and repeat. 3. repeat this several times.

On my machine (with a completely fresh install of TextMate build985) my typing slows down to about half-speed.

The key here is that the slowdown only happens when you are typing in the middle of the text-block; that is to say, in the middle of a very long line. When typing on a new line, everything seems normal.

Is TextMate ill-equipted to handle lines this long or is my machine messed up? Anyone else out there see this same thing? Any suggestions?