also, the problem with the old storage was mostly due to slow upload speed
even if ping is high, you will eventually reach good speed because of TCP congestion control, it should definetely work for webms
with pictures the problem is that they are too small in general and before congestion control cathces up you will download them (with low speed)
why networking is so hard
maybe it's better to make my own CDN that will precache recent files on several nodes with good upload channel? I don't think we need hundrends of nodes, Europe/America/South America should be enough