Nah, that’s way higher latency than my Surface Book (which is a much more powerful machine, but is also driving a 3000×2000 display) gets. That video is at 25fps, and exhibits latencies of 7–8 frames (~300ms) on scrolling a web page, and 9–12 frames (~400ms) on resizing windows. I can’t measure latency accurately on my device at present, but I estimate that I’m getting around 50ms of latency in both of those scenarios.

(Oh, I guess you were talking about the functionality, not the latency. Ah well, I’ll leave this comment up anyway.)