Ever since i upgraded my pc from Windows 7 Premium 32 bit to 64 bit, whenever i connect my internet cable to my pc, it slows down considerably. My pc is a Intel Core E8200 dual core CPU, 4 GB ram and 150 GB free space. When i play NBA 2K15 for example w/out being connected to the internet, its runs smoothly. But when it is connected to the internet, it is super laggy. Any ideas why?