[ThatPlayer]

My biggest issue with Lightning is that it doesn't support HDMI over the cable. iPhones (and iPads) transmit an encoded stream to the Lighting to HDMI adapters which then gets decoded and converted to HDMI by a chip in the adapter. It adds encoding artifacts and latency.

[kalleboo]

And it also makes the adapter more expensive and fragile (they can overheat and kill themselves)