Support asked me to move from emails to here. Here is everything I have found so far:
I have been having issues lately with Vortex downloading INCREDIBLY slowly. It also fluctuates wildly. It can go anywhere from 50 kb/s to 4 mb/s. it usually sits around 1-3 mb/s, which is super slow for those bigger mods. I get ~30 mb/s on steam, and 150 mb/s with everything else.