Wow. You'd think after all these years, there wouldn't be idiots like these claiming the reason of low FPS is the graphics card.
First of all, there is absolutely nothing wrong with ATI cards. Although he does have a kind of old card, it still has Shader Model 2.0 support and DirectX 9.0c support, which is
only what matters regarding the graphics card.
Second, what does the graphics card even have to do with his bad performance? If you were to actually search for "fps slow" under "GC Emulation > Dolphin" via the
Search Button, you would see it is the processor (CPU) that relates to the FPS.
Even if he had two Nvidia 9800s via SLI, it would only increase the performance by about 5fps at the max. If he had an Intel Core 2 Duo E8600 with a Zalman 9700 with Arctic Silver 5 and overclocked accordingly, AND he used 64-bit Windows and 64-bit Dolphin, THEN that would increase his FPS by... let's see, 20fps? 25? I don't use Dolphin much so my estimates are probably off.
So it's basically two reasons why you have bad fps:
1. Your processor is, sorry, bad (no offense

).
2. You aren't using 64-bit Windows and 64-bit Dolphin.