obstacle sensors

I was just flying my Mavic Pro at 400 feet AGL - well above all trees and obstacles. I wasn't using any tracking modes; just full manual flight control. I flew it out about a mile and on the way back it was only going like 3 miles per hour. It was also giving me occasional false obstacle...

So we had a long discussion about flying in strong winds on a thread here the other week, and in doing that, learned a lot about how the Air and Pro differ in their handling of winds, especially when not flying in Sports mode. I'm still reading many comments, and getting asked directly, how to...