it IS a bit slow isn't it? Well, I saved the video ... when I get home I'll host it.
Part of the problem is that it's divx, which is pretty good compression but not really good enough for streaming. The other problem is that they want to make the viewable area a little too large, like 640p... doubling the size of the video takes four times as much data so the result is overloaded and slow servers.
The quality of the vid is a little rough also in order to keep the bitrate reasonable, and there's no sound
Despite all this, just get it loaded in the background and then go do something else. When you come back later it'll be ready.