Oh god, she's emulating the ps2 version. That version ran notoriously bad on original hardware and getting it to run smooth on PCSX2 varies depending on the PC a bit more than the average game. The PS3 version and the remake are both great, but it's much easier to just emulate it for streaming (plus it's free).
It does seem like she's played this game before, did she mention it's not her first time playing it?
Edit: Nevermind, guessing by the title and what she's saying she's played it before.