I don't play these games, I'm asking for a friend. He says that every game he plays online has lag. Our internet speed is about 30mbs Download and 5 upload. Everytime I do a speed test it comes close to that so I know it's not my internet. Can other players internet affect it? He also says he always has high ping on Counter Strike.
I never seem to have a problem when I play online with my PS3, and thats wireless, the PC is not.