I'm not convinced that that's true, but you are free to believe what you wish.
Whether or not you "believe" doesn't change what high level competition has proven to be true.
Granted, it's something that requires good fundamentals, or the "faster" part may not be true for you, especially on the draw.
As for the accuracy part, well, I'm at a loss of you can't shoot more accurately with a quality dot over irons on a handgun.
