Okay so, im planning to start doing speedruns on FF7 and maybe FF9. So i was just wondering is there how much of a time difference in ps2 ans pcsx/2? And i might at somepoint stream those speedruns, is there any tips on which should i use? Im pretty clueless about pcsx, how it works and so on.

Emulators are banned for most PS2 games. Make sure you ask the game community if it's allowed to run on emulators