Joskun

I have a game (Naruto Gekitou Ninja Taisen 4 ) that works on Dolphin but the speed is incredibly slow. I tried clicking the orange and blue cube (Render framebuffer) but nothing happend. Is there a way to speed up the fps of a game. If so, I'd like to know how. Also if there is a better gamecube emulator than Dolphin I'd really appreciate to know it. Thanx