Beyond modified config files, several manual settings can significantly reduce lag and frame drops:
Config files are modified system files, typically named UserCustom.ini , that allow users to override default game settings. These files are used to force the game to run at lower graphical fidelity than the in-game menu allows, thereby increasing Frame Per Second (FPS) on low-end devices.
: The file is usually found at: Android/data/com.tencent.ig/files/UE4Game/ShadowTrackerExtra/ShadowTrackerExtra/Saved/Config/Android .