There is certainly a difference, at least in my experience, between recording APs and more traditional play - players tend to streamline, cut down on the cross talk and highlight a certain amount of "entertainment" compared to a 'normal' session - APs tend to be more bombastic, the prep tends to be a little more intense, and the arcs we make generally try to be more focused in an attempt to make it easier to follow for any given listener. A normal campaign for my groups at least will often amble this way and that, explaining random details or NPCs or points on a map in a kind of ramshackle route to the ultimate goals of the campaign, while a AP campaign will be much more focused, and where deviation occurs it's obviously different in its approach.
There is a certain degree of traditional performance stuff creeping in for sure, but most of my players haven't done any other kind of performance so I can't speak to that - I know personally I look at a game much more from a cinematic point of view than I do with my home games.