Well if your chinese brothers were pushing as much tin as the JFK guys, they would have to speak faster too. I bet JFK ATC handles more movements in an hour than those beijing controllers do all day.
And thats with just one ground controller. Look at HKG, they have two separate ground controllers, plus a supervisor, just to handle the little ground movements they have compared to JFK.
Not saying the US way is perfect, but when I fly into that north-east corridor and hear that ole Brooklyn slang firing over the radio...i feel all warm and cozy.....and more importantly: SAFE!!!