I'm not an expert when it comes to laptops, but I think you should be able to play a lot of GC games just fine. As long as you make sure to take advantage of that turbo mode, you shouldn't have any problems with most games.
As for PCSX2, I've not tried it yet, but I hear that PCSX2 has a lot more speed hacks than Dolphin. I've noticed some people coming here asking why they can play PS2 games just fine on their computers, but GC games are harder to run. It all depends on the options and configs you have in each emulator though.
As for PCSX2, I've not tried it yet, but I hear that PCSX2 has a lot more speed hacks than Dolphin. I've noticed some people coming here asking why they can play PS2 games just fine on their computers, but GC games are harder to run. It all depends on the options and configs you have in each emulator though.