he never says way faster anywhere in the interview.
why wouldn't he say it was faster if it was actually faster.?
there are a number of things that could prevent this one being that the player is still constrained by the browser. which is why he would say "you can do things while the gpu is writing to the screen" rather than " the gpu processing makes it faster"
read between the lines here. they have done this every release since the dawn of time and every time we get sucked in.
