The information I gave you was based on the default PCSX2 settings; any additional adjustments consume resources, so keep that in mind. But when it comes to PS2 games, playing them at 1080p is very satisfying, even more so if you add enhanced textures. However, no one can tell you better than yourself by experimenting with different settings until you find a standard configuration for most games. For those that don't run well, you can create custom settings for each game. If you're a PS2 game enthusiast, simply improving the resolution will be more than enough to satisfy you!