In the new Better Together update (also referred to as Bedrock????), moving items to inventory from hotbar or to/from chest performs an animation of the stack/item moving. While this looks nice, it provides a noticable delay before you can move the next stack. This is slow enough to be annoying when quickmoving a bunch of stacks.
It would be nice if there was an option to disable this, or if the animation didn't delay further controller input.