Firstly,
I was spamming "Enter" key to speedrun this game and earn all its achievements.
It takes me a while to finish the first two achievements.
Afterwards, I noticed "Ctrl Left" key was a better way to speedrun this game. Just
hold "Ctrl Left" key and chapter won't last more than 5 to 10 seconds each!
I earned the last 3 achievements in a minute!