The phosphorum text input is terrible on Firefox

I had to abandon another posting because the UI text input of phosphorum completely locked up. I'm assuming that some sort of javascript is being used there and I think that it should be looked at. If the JS can't be perfect than I'd much rather it not be there rather than to crash the UI and even text selection to the point that I can't salvage my post. It seems to do fine for normal text but with some indented code fragments it adds italics and then becomes super slow.

On Chrome too, text input becomes really (really) slow when any line is longer than, say, 70 characters (or is it when message is too long?)


Has been reported:

I use a text-editor next to my postings, copy/paste.. ;-)