newsgroup download speed throttling downtown Vancouver?

I just started experiencing this today. I'm subscribed to a third party newsgroup server (supernews.com) and I've noticed that I can no longer get more than around 1 MBit/s of speed from 28 connections when downloading. I have a 100MBit connection and before I was maxing out my connection at 10MBit/s or so. I'm living downtown Vancouver. Anyone else experience newsgroup slowdowns? I also tried running a trial with another newsgroup provider and their speed was no better. I tested my connection at speedtest.net and it looks like I still am getting close to maximum speeds. It only seems to affect me when I'm trying to download from news servers? I hope I'm not being paranoid and shaw hasn't decided to start throttling traffic.