Why Is My Pokemon Rom Laggy Why Doesn't Pokemon Diamond DS ROM Work On The Super Card?

Why doesn't Pokemon Diamond DS ROM work on the Super Card? - why is my pokemon rom laggy

Me and my friend have both tried to get the ROM for Pokemon Diamond is up and running, but all we get a blank screen on the DS after the game. We ROMs downloaded from both sites and the two do not work. However, should the Pokemon Pearl ROM. Does anyone know why?