: AetherSX2 is actually based on the PCSX2 code base but optimized for ARM (mobile) processors.
Are you using an Windows 11 device? What specific games are you trying to play? Aethersx2 Windows 11
If you are looking for the best performance on PC, consider using PCSX2 over AetherSX2, as it is a native Windows app with better, more stable support for high-end rendering and newer Windows 11 features. AetherSX2 Full Setup Guide : AetherSX2 is actually based on the PCSX2