Today all users will be playing videos from the home region. So someone outside of the US would be connecting back to US to view the vidoe and load the Stream pages.
However... we are going to be looking at adding CDN support to Stream. Where if a video gets played often from further places we'd automatically float that video (encrypted and secured) to Azure CDN. That way users outside of the US would connect to CDN POP location to watch the video.
If you are intersted in us adding CDN support to Stream can you add an idea on the idea forum for others to comment and vote on: https://techcommunity.microsoft.com/t5/Microsoft-Stream-Ideas/idb-p/StreamIdeas
