I think I have just witnessed the worlds fastest quadcopter drone. I was doing some work at a local residence and figured out we both shared the hobby of flying drones. So he showed me some of his collection. He was flying one in FPV around his house, then we went outside and flew the fastest drone I’ve ever seen.
Not sure what it was called though sorry.
Please watch: “(11) Removing old picture hooks and patching the walls ”