Killzone 2 framerate can drop as low as 20fps

[Ail]

Squilliam said:
Without a steady 30FPS and without split screen I cannot consider this game usable to compare to other shooters which do have a solid frame-rate and split screen. Nice job, but its not fair to compare games which don't make these sacrafices to one that does.

 

 Which games would those be ?

Gears 2 drop bellow 20 fps at some point.

Today I had CoD:WaW drop me to bellow 10 fps for a few seconds...