A redesigned mini-map and HUD similar to the console version. System Requirements
The PSP simply lacks the memory, processing power, and storage to even load the first mission of GTA V. Even high-end gaming smartphones struggle with native GTA V ports (which don’t exist). An emulator adds overhead, making it even harder.
To play the actual GTA V on a mobile device, you cannot use an emulator. Instead, you must use cloud gaming services