Upgrade your graphics card.\n\n Having a fast Internet connection may not be enough, since the graphics card may not be able to render the game at equally high speeds. For optimal online gaming experience and reduced lag, you should opt for the recommended gaming configuration provided by Activision.

Call of Duty: Warzone!" Free for everyone.

Call of Duty Warzone is a free to play game. It's not on GamePass and it doesn't need Xbox Live Gold either. MW2 and its multiplayer component is not free. You need to buy it if you want to play the single player game or MW2 multiplayer.