If you're using Google DNS, Open DNS, or similar free DNS services, this may be what is affecting you. Try puting in a static DNS setting such as the following:
12.127.16.67
209.244.0.3 - 209.244.0.4
4.2.2.1 - 4.2.2.6
For Mac users (Lion):
System Preferences > Network
Now make sure your appropriate connection you are utilizing whether it be your WiFi, Ethernet or otherwise is highlighted and currently active, then click "Advanced..."
Click the DNS tab, and then click the "+" icon under DNS servers to add in one or more of the above static DNS IPv4 settings.
Click "OK" and make sure to hit "Apply".
Windows users:
Follow these instructions to add in static DNS IP settings:
http://windows.microsoft.com/en-US/windows7/Change-TCP-IP-settings
My apologies, I don't have a Windows machine in front of my to walk you through the steps quickly.
Hope this helps everyone, it worked for me! Went from 80 KB/s to 5 MB/s
Please like this post if it fixed your issues!