It should take about 0.5x to 5x real time to upload a video, depending on (1) The input resolution, (2) The size of the network (small/medium/large) and (3) How good your laptop is.

It can upscale, say, a 1 minute video from 360p to 720p on my laptop in 40 seconds. Upscaling a 1 hour 1080p video to 4K might take 5 hours though because it's much biggger.

I haven't been as good at updating the upscaler as I lost my job in April and I'm mostly working on a new startup. I did fix an issue where a recent chrome release just broke the app, but I won't have much time for ongoing improvements