Abysmal failure. PS2 emulation requires a host machine several orders of magnitude faster than the original hardware. The PSP, being weaker than a PS2, cannot emulate it. Even today, high-end PCs struggle with flawless PS2 emulation. On the PSP, PS2 emulators like Play! or PCSX2 never progressed beyond displaying a static logo at 0.1 FPS.
Suddenly, homebrew developers had what they always needed: the actual engine documentation. gta san andreas psp homebrew
And for that, the homebrew scene remains one of the last bastions of true digital preservation. Abysmal failure
Between 2016 and 2018, a developer named "ReLite" created a 2D top-down demake of San Andreas using for the PSP. This project, simply called "GTA San Andreas 2D," was not a port but a tribute. being weaker than a PS2