Nas

No, i just dislike all emulators... i dislike playing games on computers. I own all the old nintendo and sony systems

I think the specs are high because the PS2 is still rather difficult to emulate from what i have heard, but i could be wrong.

There could be more to emulation than the sum of OS overhead and original console specifications, I honestly don't know.

@TBH - I also own all of them, but loading them in my car and hauling them on trips to pretty much anywhere isn't viable. And certainly not an option for playing on a plane.