Watch some clips from astronauts on the ISS, they too move slow inside the ISS. The reason might be, that every move you make has an effekt, you raise your right arm and your whole body start turn in the opposite direction. The faster you move the more prominent this gets and you start to float and turn out of control and you dont want that inside a space Station...

Try Google "big expansion" The baloon is a good example, but think of the Atoms of gas inside, and not the surface. each trying to get as far away from each other, while it gets bigger without adding anything. thats why we cant see futher away than 13b lj. It was too dense for light to travel and too hot for Atoms to condense. At least thats how i understand the latest models as Amateur...

E: spelling

The big telescopes have long waiting lists of scientists that want to use them for their research. After they gathered the Data, they spend months interpreting the Data to publish it. If that Data is available to anyone immediatly (live stream), others would try to publish it under their own names and would claim the fame of the initial scientists who had all the work. After all, they dont point it randomly at the sky, but have a scientific scope which they had to propose before getting time on the telescope. It just would'nt be fair to those people, that had all the work, just for others to claim the first publication afterwards. And yes, there are groups that do this, and thats how the academic world works. First publisher gets all the fame and recognition.

In case of special Events though, the idea is pretts cool.