If you are determined to play Forza Horizon on a mobile device or lower-end hardware, you have legitimate options that are safer and actually work:
The search for a " Forza Horizon 5 PPSSPP Iso File " is a dead end based on a misunderstanding of the game's platforms. Forza Horizon 5 is a powerful modern title that never existed on the PSP. While the PPSSPP emulator is an excellent tool for playing a vast library of classic PSP games, it cannot and will never be able to run Forza Horizon 5 .
If you want to play Forza Horizon 5 on a mobile device, the only official and safe method is using Xbox Cloud Gaming Forza Support for the PC version or how to set up Cloud Gaming on your phone? Forza Horizon 5 on Steam
Since you want the Forza Horizon 5 experience, you already have PPSSPP installed. Here is how to set it up for the best open-world racing performance:
The real Forza Horizon 5 is waiting for you—just not in the form of a PSP ISO file.