Game speed adjustment is a real game changer, allowing you to make the game slower. Now the game is even more accessible to players with challenges that can make it difficult to react as quickly as others.
Some may worry that allowing the game to go slower takes away the challenge or fun. But this, and other options, should be thought of as difficulty sliders. You can fine tune various aspects of the game to provide the right amount of challenge for you. Why would you purposefully set the difficulty of another game to "easy" when you can handle "intermediate", or set it to "hard" when it's too difficult?