I did the math and made this code so that the game will work correctly at any resolution:

if(Camera.main.aspect >  10f / 16f){
float aspectScale = ((10f / 16f)/Camera.main.aspect);
Camera.main.rect = new Rect ((1-aspectScale)/2, 0, aspectScale, 1);
}

Also, you can now freely bind controls to controller axes as well as buttons.

Lastly, the purple ship no longer has double maximum speed.