You must legally dump the BIOS from your own PS2 console. Place this file in a folder on your phone.
Switch between Vulkan (usually faster) and OpenGL.
Though development has shifted over time, it remains the "top" dog in the world of mobile PS2 emulation. Here is a deep dive into why it’s the best, how it performs, and how to get the most out of it. Why AetherSX2 is the Top Choice
Open the emulator, select your BIOS, and point the game directory to your ROMs folder. Pro-Tips for Peak Performance
