LiveJournal editor

Wow, if you get a really long post on LJ, editing it becomes extremely slow.
I have a historic post that contains every book I've read (the backfill from more than about 5 or 6 years ago is by memory and sketch) so it's long, like hundreds of lines long.
Even in "HTML" mode, when I'm typing the keystrokes lag several SECONDS behind, and it's destroying an entire core on my machine (not a blazing machine by current standards, but it is an AMD 64 dual core 2.8GHz with 4GB of RAM - typing in a text editor shouldn't bother it.

Even typing in this short thing is drawing up to 10% of the CPU (20% of one core). I don't know what they're doing, but it's not efficient.

Interesting, it seems to actually be BETTER when typing in the visual editor.  Still not great but better.  I wonder if typing in the HTML tab is really causing the visual version to be updated, then the HTML to be generated back from that.