It depends. For the unofficial ISO mod, you need a device with at least Snapdragon 665 or better (4GB RAM). For official PPSSPP games (Vice City Stories), even a Snapdragon 450 works fine.
: For the best performance, go to Graphics Settings and set the (for newer devices) or 🌟 Key Features of the PPSSPP Mod Gta San Andreas Ppsspp Iso File 7z Download
: Open the PPSSPP Emulator, navigate to the folder where you extracted the file, and tap the game icon to start. It depends