Just check and make sure you are not using any torrent programs or any program that could be uploading, because even if your down is 100mbps then your up is only a fraction of that and it can and will affect your down speed greatly. Other than that I have toons in all 3 data centers and have not had any issues like you are stating. But it could be any number of things, what are your computer specs (Hard drive that the game is installed on especially)?