Instead of seeking a non-existent emulator, you can install these games which are optimized for the handheld:
For portable PS2 gaming in 2026, look to: ps vita ps2 emulator vpk
Sony released a handful of PS2 games as “PS2 Classics” for PS3 — some of which were unofficially converted to run on Vita via (the PSP/PS1 emulator). These are ports , not emulation from ISO. Instead of seeking a non-existent emulator, you can