I know what you mean but I doubt they are a factor because I already figured that out and compensated for it. I stood still, went to go eat something and came back half an hour later. the ping dropped from 1500 to 600. everything was downloaded and the server had only one or two people on it so I know its not entirely my network's fault, nor is it my pc's fault at all.
Like I said. I play online a lot from a lot of different games, even games that download things while playing and none of them are this bad so my pc is fine.