ctrl i so you can see your FPS.
Pull up the Text Buffer and hold down a single key until it starts auto-repeating.
Watch FPS drop.
OR fill up the text buffer, then hold down backspace and delete it out.
Watch FPS drop.
Thought it was only me until I had a squaddie try it. He dropped a good 20fps, so I had a few others try it, and all reported a pretty big drop in FPS.
I also drop 20ish FPS when doing this. Been like this over a year ish.
Skuzzy?? Anyone??