It would seem that my download speed is extremely low. I'm currently trying to download the 30mb patch, and am on 20.7mb after half an hour. My internet is not the problem, rather it is either the connection or the computer. Web pages load instantly, and most of the time I don't have issues with download speeds.

However, this is what it's like when I open up the WoW launcher:

-Goes up to ~200kb/s fairly slowly
-After about 6 seconds it starts to slow
-After another few seconds, it's on ~1kb/s
-Stays at this speed with occasional random 5-second bursts of 150kb/s

This happens whenever I download a patch for WoW, but is fine for anything else.

Any help would be appreciated, I'm not exactly sure what information you need but my connection to the router is <1ms (this is when not downloading, just from memory) and it's a brand new computer, only a week old.