PS3 owners, you should have seen the warning signs.
First one: that this is a multi-platform release being ported to the PS3. Uh-oh.
Second one: that said PS3 version's been delayed while PC and 360 owners have been blowing up Striders and over-using cake jokes to within an inch of their life.
So it should be little/no surprise that when 1UP got their hands on the EA-ported PS3 version of The Orange Box, they found it...largely awful. So awful, in fact, at times it was "downright unplayable". Chief culprit are the framerates in the three HL2 releases, particularly in outdoor/vehicle sections, which at times slows to a single-digits crawl. Ungh. You'll not kill any Combine at 9FPS, Gordon.