If you can prove D3D11 is running at 1%, I'd be glad to look into your issue. D3D11 runs at about 75 - 80% the speed of D3D9 because it is a far more accurate backend with more robust features that allow for better emulation of the GameCube.
We understand that some users with older computers will be upset that they can no longer run the games full speed, but, http://dolphin-emu.org archive older builds so using them shouldn't be difficult. Yes, you will have minor issues in some games, but if they don't matter to you, then have fun!
Just remember, hard decisions are made throughout development, and ultimately the emulator's ultimate goal is to emulate it's target platform correctly.
We understand that some users with older computers will be upset that they can no longer run the games full speed, but, http://dolphin-emu.org archive older builds so using them shouldn't be difficult. Yes, you will have minor issues in some games, but if they don't matter to you, then have fun!
Just remember, hard decisions are made throughout development, and ultimately the emulator's ultimate goal is to emulate it's target platform correctly.