I'll have to try some of this stuff. I actually just tried playing this game tonight as well. Tried a lot of different settings. The game just refuses to run higher than 7-12 FPS. I have an Intel i5 2500k as well, and I hear Sandy Bridge processors are among the best for Dolphin.
Seems like something about the game is just not very compatible. I also couldn't get any of the opening/intro videos to show on screen. Audio played, video didn't. I tried messing with frame limiting, audio engines, video engines, resolutions, renderers--anything I can think of. Nothing really had an impact.
In-game, system-rendered cutscenes played smooth. As soon as gameplay started it got bad though.
Also, my processor usage never went over 50%. Game speed was reported as 100% as well.
Seems like something about the game is just not very compatible. I also couldn't get any of the opening/intro videos to show on screen. Audio played, video didn't. I tried messing with frame limiting, audio engines, video engines, resolutions, renderers--anything I can think of. Nothing really had an impact.
In-game, system-rendered cutscenes played smooth. As soon as gameplay started it got bad though.
Also, my processor usage never went over 50%. Game speed was reported as 100% as well.