To that I say, to achieve that visual quality (that's not even better than pc) pretty much all the new
games except for non gpu / cpu intensive
game types like racing
games (forza 5) you're dropping to locked frame rates of 30 (dead rising 3, RYSE, Assassin's Creed 4) which the majority of those don't even give you 30 like they say but more like 26 the majority of the time but can dip as low as 16 fps for more than just a few seconds... This idea that it takes developers time to get «used» to the systems and optimizing it over the years is complete and utter
bullshit, that's not how development works.