It might be D, but it seems slow at all my friends houses as well as my parents and sister's computers. Can't be C; my house has a really good internet connection. A is out as well, all the computers in my house except for my own are very fast. Carrion fields runs best on my moms or my sisters computer, the fastest. On my own (a little laptop with too many things installed) it's much slower, but it keeps the same speed throughout the game. On the other computers, it's really fast, but slows way down if I move to fast or follow someone moving fast or fight. E's out; I'm sure we don't have anything like that. None of those seem the case. The only one that might be likely is D. Next time I visit reletives in another state, I'll test out Carrion fields and see if it's any faster.