There is a well-documented technical "deep dive" regarding the GTA San Andreas Android Port to PS Vita . Because the Vita has enough power to run the Android version of the game, developers like TheFloW successfully ported it. This is often confused with PSP projects in search queries.
If you'd like to try these fan versions, I can help you find: Gta Sa For Psp UPD
Here is the latest "UPD" on the most popular builds: There is a well-documented technical "deep dive" regarding
If you want San Andreas in a portable format that respects the PSP era, consider: If you'd like to try these fan versions,
Both were built specifically for the PSP’s hardware limitations (333 MHz CPU, 64 MB RAM). San Andreas , by contrast, was a massive PS2 open world requiring significantly more memory and processing power. A direct port was impossible without major cuts.