Download and install AetherSX2 or DamonPS2 [2, 6].
To enjoy God of War 2 without lag, your device should meet these recommended specifications:
Obtain the God of War 2 ISO (highly compressed) and the necessary PS2 BIOS file (e.g., SCPH7002) [2, 3].
Enable "Widescreen Patch" and set to "Stretch Full Screen" for a modern look [3].
Use a file manager like ZArchiver to extract the highly compressed game file into your phone's internal storage.