Off (or set to 1 if your device heavily struggles). Lazy Texture Caching: Checked (speeds up rendering). Hardware Transform: Checked. Software Skinning: Checked. Audio Settings Audio Enable: Checked. Global Volume: 7 or 8.
Assuming you found a valid military shooter ISO (like Syphon Filter), here is how to set it up. Igi Iso File For Ppsspp
If you experience low frame rates, audio stuttering, or graphical glitches, tweak the PPSSPP settings using this configuration: Graphics Settings Vulkan (Switch to OpenGL if the game crashes) Mode: Buffered rendering Frame Skipping: Off (Set to 1 if your device is low-end) Off (or set to 1 if your device heavily struggles)