AirDrop is 100x slower than the equivalent wired solution. I say this as someone transfering 350GB of media off their phone on friday, Apple needs to fix wired file access from mac to phone.
Lightning is limited to 53 MB/s by the sheer virtue of being USB 2.0, and probably is even slower in real life, so AirDrop would be at maximum 0.5 MB/s?
