You got a lot of misconceptions going on.
1: D3D11 and OpenGL can use your graphics card, and both will work better, especially OpenGL in this particular game due to it having Vertex Streaming Hack at that point.
2: You need to follow the laptop performance guide: https://forums.dolphin-emu.org/Thread-unofficial-laptop-performance-guide
3: Dolphin has INI files to make sure things work. What you do by opening the graphics menu is override the INI file, which means stuff like the map in Twilight Princess is probably broken, or you'll see the map cursor flicker around, etc.
4: Disabling features of the emulator to get more speed is definitely an option, this isn't any kind of glitch as much as you overriding the defaults to make the game run "perfectly"
1: D3D11 and OpenGL can use your graphics card, and both will work better, especially OpenGL in this particular game due to it having Vertex Streaming Hack at that point.
2: You need to follow the laptop performance guide: https://forums.dolphin-emu.org/Thread-unofficial-laptop-performance-guide
3: Dolphin has INI files to make sure things work. What you do by opening the graphics menu is override the INI file, which means stuff like the map in Twilight Princess is probably broken, or you'll see the map cursor flicker around, etc.
4: Disabling features of the emulator to get more speed is definitely an option, this isn't any kind of glitch as much as you overriding the defaults to make the game run "perfectly"