Vulkan is generally recommended over OpenGL for better performance and efficiency on most modern Android hardware.

: This is currently the most reputable community-driven "patch" for AetherSX2

Adjusting the Emotion Engine (EE) cycle rate is the most effective way to boost performance on mid-range devices. Low-end devices: Set to 60%. Mid-range devices: Set to 75%.

While the default settings are fine for casual play, cranking the quality up to "Extra" transforms classic games. We are talking about 2x or 3x resolution scaling, full anisotropic filtering, and anti-aliasing that makes the graphics pop.