Same problem here.
After a marathon download, now it's fixing the Piggs.. Starts off with 2 hours to go at a snails pace then ends up at 51 hours to go at a dead snails pace.
If I look in task manager, the updater is not using very little cpu time.... stays at 0% while the memory it uses steadily grows.
Oh look! now its all of a sudden down to 7 hours while I was typing this. Back to a hyper snails pace of 36.6k /sec. Guess I will wait and see what happens!
Looks like things are about normal with CoX. Maybe I can pray for a few less crashes a day!