My understanding is that even though the PS2 has PS1 compatibility by hardware, the way Sony implemented Popstarter was via emulation. If this is true, then you're probably better off with the much better PS1 emulation on PS3. The only advantage a PS2 would have in this scenario would be its native 240p output, but that would only matter if you're playing on a CRT TV.
As said a few posts back, all emulation has some inherent lag. RetroArch's run-ahead is the only exception I know of.
Do some game need patches to work?
PS3 has barely any input lag on PS1 or PS2, it's actually much better than PCSX2 on a NASA supercomputer.
How Sony managed to pull off ps2_netemu so well is beyond science fiction, not even the PS4 seems to be able to replicate this.
My guess is the lag you are seeing comes from somewhere else.
What about the frame rate and audio slowness problems in NTSC PS1 games on PAL PS3s?
Last edited by Windows_10_User,