To use this feature, open DFNDR, tap on TOOLS tab and select the Game Booster feature.
Tap on "Add" to choose the games you want to speed up.
Select the games you want to accelerate by tapping on the "plus" (+) button.
Now you’re ready to play!
You can also add a shortcut of DFNDR's Game Booster folder to your homescreen by tapping on "Options" (three dots button at the upper right corner).
Select "Add shortcut to homescreen" and, it's done!