I checked out the official PS3 backward compatibility site and it claims that there are no problems. But I’m having some difficulty and I’m not sure if it’s free from input lag or overall lag.
I don’t have any evidence other than personal observations. I’m making this post to know if anybody else has had similar experiences or knows the actual answer. I could be wrong due to my lack of experience with each of the games on console (I’ve only played them in arcades up until now).
BTW I am using a PS3 USB joystick to play it on a 60GB PS3.