So I got Dragon Quest 8 to work but great scott, the amount of ghosting is asburd. Framerate's good, but that's just insane. Is that "normal" for PS2 emulation or have I used a setting the wrong way?
Try turning on the half-pixel offset hack from the settings of your graphics plugin. It's only available in hardware mode. It removed the ghosting in Yakuza 2 for me.