AetherSX2 is a emulator of the PS Two console for the Android platform. You can play games which you have dumped from disc on your portable device.
A BIOS image **is required** to play games and is not optional. This image should be dumped from your own console, using a homebrew application.
You need a high end device to achieve good performance. We recommend at least a Snapdragon 845-equivalent device. This means 4 large cores (Cortex-A75 level, 500 or more single core Geekbench 5). If you only have two big cores (e.g. Snapdragon 700 series SoCs), you should not enable multi-threaded VU, and performance will suffer as a result.
Devices with Mali or PowerVR GPUs will run the app, but performance will be much lower than Adreno GPUs, and the Vulkan renderer will not be available. This is because they are missing a critical feature (dual-source blending).