User config per game

[grangler]

Hi guys i use dolphin and Ishiiruka dolphin some games work better per emulator most games i use on Ishiiruka dolphin except starwars rouge squadron 2 i use on dolphin on vulken api.
On Ishiiruka dolphin you can use diretx9 what i am trying to do is edit user config file per game and set up for diretx 9 for speed racer as i get alot more fps i can change all others dx12 vulken dx11 cant get dx9
I have[Core]
GFXBackend = D3D12

For Opengl:
[Core]
GFXBackend = OGL

If you use the latest development version for Vulkan:
[Core]
GFXBackend = Vulkan

I have tried GFXBackend =Dx3d9 GFXBackend = D3D9 and other abreviations
please help thanks mark

[JosJuice]

Questions about Ishiiruka go in the Ishiiruka thread.