That makes sense. AirDrop rapidly switches the wifi radio between the network the device is connected to and the adhoc network of the sending device. It’s effectively running at half speed with a clever trick.

Airdrops only problem is the proprietary nature of it but it’s a good solution that works very well. In the PC market, they still can’t get Bluetooth right. They never got Miracast right either. Microsoft half-asses everything they try which turns apples cool idea into the only way to do something.