Upload your memcard save (not a save state as that is pointless, save states also save emulator settings also so loading in a save state after changing settings only reverts the changes) and I can test with a good disc image
Also give directions to get to the crashy point
P.S. P.E.Op.S. Soft driver is the best one for 2D games like Suikoden, for visual improvements look at HQ2x (stretched) or HQ3x (stretched) and use multiples of 320x240 e.g. 640x480, 960x720, 1280x960, ect ect... (those are all 4:3 display modes)