Ive noticed in the last year or two the GameCube has recieved several ports of PS2 games that ended up a bit worse than the original version.
1) SSX Trick----Textures not as sharp, framerate lower than ps2
2) Need For Speed: Hot Pursuit 2---Very poor framerate in areas
3) Spy Hunter----texture sharpness---poor framerate
There are more but these are the top 3 perpatraitors. This was obviously a result of a rushed transfer and limited optimization.
Thankfully the ports in the last few months have been getting much better.
Freekstyle for instance was a very decent GC release from EA and didnt suffer from the same problems.