If you are running the original 2005 game via an emulator (like PCSX2 for the PS2 version ), performance depends heavily on your hardware. For the PPSSPP emulator itself, which is designed for PSP ISO files, you will only be able to run native PSP games.
Yes. PPSSPP supports CWCheat codes. You can enable cheats in the system settings, create a cheats.db file, and input codes for infinite ammo, infinite health, or max stealth. If you want to customize your setup further, let me know: What are you playing on? (Android, iOS, or PC?) Do you plan to use touch controls or a controller ? Share public link
That said, enthusiasts have created modified ISO files of games like Sniper Elite 4 in CSO format, which are claimed to work on PPSSPP. These are unofficial, fan-made ports that are often heavily compressed versions of the PC or console game, adapted to run (often with significant compromises) on the PSP's architecture through the emulator. While these exist, their performance, stability, and legality are highly questionable.
Look at the wind indicator at the top of your scope. Adjust your horizontal aim against the wind direction.
