I can give you the exact settings to maximize your frame rate.
Open PPSSPP → Game Settings → For Ghost of Sparta , use these tweaks: god of war 3 ppsspp 200mb zip file7z work
Switch your graphics backend from Vulkan to OpenGL in the PPSSPP settings menu. If you want to optimize your setup further, let me know: Your device's RAM and processor model. I can give you the exact settings to
Set this between 60 and 100 (lower numbers can stabilize frame rates on slower phones). Troubleshooting Common Issues god of war 3 ppsspp 200mb zip file7z work