Why wouldn't you instead just run it in Duckstation where you can bump up the resolution, fix wobbly polygons, etc (???)
What sort of freak wants to besmirch their eyes with blurry original PS1 graphics? I lived through the PS1 era and you couldn't make me go back after decades of playing the games emulated
Especially when they already had pretty good results and I'm assuming profits from doing this on the PS3/360/Vita collection.
I mean my ass bought it for the Vita as a kid, so we know at least 2 people bought the Vita version