When it rains, it pours. After getting nothing for months, I now have so many downloads I can not count them. And they all have a time limit of later today.

This will not work. I will abort them, and hope that the time estimates are better next time. I know, it is a learning curve.

My next download picked up 16 work units. That is much more reasonable, and I will have no problem finishing them in time.

ETAs are typically junk until tasks are completed.

You are stating the problem, not the solution. They need to implement more realistic estimates.