A free program for Android, by Juzer Inc.

GFX Tool for COD is a free, easy-to-use app that allows you to change the resolution of your game. You can use it on all Android devices that are capable of running COD.

The application supports all the current game options, and you can change the resolution according to your needs. You will have to set the resolution to the best possible value that will help you to have a lag-free experience.

GFX Tool for COD supports the HDR (High-Dynamic Range) graphics. You will have to use the HDR option to get the best performance.

The application allows you to set the resolution to a value that is higher than the default value.