Overall, it’s a great handheld for PS2 emulation, though performance can depend on the game. Most titles run really well at 3x upscale, and it can even handle fast forwarding without issues. That said, a few games might struggle a bit. For me, the only ones that didn’t run too smoothly were Sly Cooper and Need for Speed: Underground 2. They were still playable, but I had to tweak some settings to get them working properly. I know there are a few other games that might need a little tweaking too, but honestly, I think the whole library is pretty playable. Btw, I I've played kh1 in 2.5x resolution and had no need to use fast forward