The best Vimeo/Livestream can do is about 30 seconds from the time the frame hits their server, as a reference.

As far as I'm concerned, 500ms is normal latency (once setting aside network delay -- clearly a 200ms one way trip from Europe to NZ will add to that)

I'd say ultra low latency would be sub-frame, so <40ms. Low latency on the 1 frame to half a second, normal upto say 1.5s, and high latency beyond that.

But that's for point to point or multicast circuits, and ISPs don't like multicast as they can't charge for it.

Twitch random 1080@60 6K viewers stream

>Latency To Broadcaster: 7.71 sec.

>Latency Mode: Low Latency

Multiple seconds.