Ah then upgrade your router and then go to the start menu, Network connections, then left click your ethernet for properties. Click on the configure button and go to the Link Speed & Duplex options. Adjust the settings in the value part to see which option produces the highest network speed. You can just use the Auto Detect part though. Then replace your Ethernet cable with a short, CAT6 cable. Shorter Ethernet cables can boost speed, and CAT6 cables are the most advanced type of network cables. Just move your modem closer to your xbox. Then connect your xbox directly to the source of your Internet, like your cable or DSL modem. That should then boost your speeds exponentially. And as Mclovin said, try to game when someone is offline.