We're talking about tap-to-audio-output latency though, so it has nothing to do with display part of the screen. And there is no "touch" on PC generally speaki

We're talking about tap-to-audio-output latency though, so it has nothing to do with display part of the screen. And there is no "touch" on PC generally speaking.. input latency would be on mouse or keyboard. I think you're talking different thing from the topic.