Tools able to break faster than they should with specific timed clicks

https://www.youtube.com/watch?v=Dj5iDPkn5UI&list=UUOVA82fVPv0TjY-RxMkw9Ig&index=2

 

this is the link to the video, as you can see I have an efficiency 2 pickaxe and I am breaking blocks a lot faster than even a typical efficency 4/5 pick then I switch to a shovel which mind you isn't enchanted yet I'm breaking blocks at the same speed as an efficiency 3/4 shovel.