Exactly. You can look at an American porn film and tell instantly it's an American porn film, even if the images on the screen at any given moment don't depict any nudity or sex. The characters and looks portrayed are just so stupid and cliched.
Asian porn seems to be more geared at depicting believable, authentic scenarios. I find myself thinking "wow, are all these people actors or is this real?" much more often with asian porn. I mean, obviously they're actors 100% of the time but the point is the acting is much better in asian porn IMHO (minus the squealing, which I haven't seen in a video in ages).