To fix your Fifa 15 net framework problem folow this video tutorial:
1. If you still get that “net framework error” you probably didn’t select “Force WARP” option
2. If it didn’t help, try to change 11_0 to 11_1
But the first thing you should do before you download that dxcpl.exe is to Disable Origin overlay (it resolves many problems, escpesially with FPS), then try to update/reinstall your Net Framework, DX and drivers. Also you better check if your graphic card supports DX11, because without DX11 support you won’t be able to play the game. Maybe you will launch it but you will get 5 fps max.