Every single time I'm about to download a patch it goes really really slow (compared to what I should be able to download). 1½h in I'm just half-way done with the 1,3GB+ download.

I have a 100mbit line and I just tested running other things and I'm topping off at around 13MB/s. Blizzards loader/downloader only lets me download between 10and 350kb/s.. (yes, before and after I've turned eveything on/off).

I have no router and no active firewall at the moment so there is nothing that should stop me from downloading faster.