Switching to OpenGL rendering fixed the issue. Only listed problem encountered was Debug Cubes, no crashes or map slowdown. When loading this specific level for example, just after the cutscene with Mecha-Bowser , the screen goes black and nothing more happens. I've beaten the game and there are barely any slowdowns, it runs full speed the whole time. Fully playable with a resolution of "size of the window.
Lilly. Age: 22.
Dolphin can play thousands of games, and changes are happening all the time.
Sharon. Age: 29.
Super Mario Sunshine
Direct3D 12 runs at the 50 FPS range unless the heat wave effect is disabled, and even then it has pretty significant drops when around goo. Fixed with Arbitrary Mipmap Detection in 5. The Dolphin Emulator Wiki needs your help!