This makes it clear that this issue is related to an advertisement. Here's some screenshots of my system monitor while having any comic page open:


(one of the cores is being used by a program that lets me donate excess processing power to medical research. Shameless plug: Folding at home)
The page gets slowed down so bad that it actually takes three seconds for it to navigate away when you click any link to another page. My PC is high-end and the slowdown that happens because of this is infuriating.
So I thought I'd tell you about this because that's definitely not supposed to happen.