When AirPlay is too laggy for games, use DisplayOut with a wired AV adapter
E3 2012: Wii U vs. Smart Glass - IGN
How To Use AirPlay 2 To Stream Audio And Video From Your IOS Device – GetNotifyR
Amazon.com: WiiM Mini AirPlay2 Wireless Audio Streamer, Multiroom Stereo, Preamplifier, Works with Alexa and Siri Voice Assistants, Stream Hi-Res Audio from Spotify, Amazon Music and More : Electronics