We're sorry to hear that you had issues running the game. This game is from a game jam that happened a little over a year ago and we haven't received any similar reports from the other people that have played the game but it's possible that your computer has lower specifications compared to most of our other players and our test machines. If you could share your computer's specifications we can look into it further.
Regarding the story itself - it sounds like you didn't solve the mystery! There are many different endings and you received one of the easier-to-achieve "bad endings" that doesn't expose the details of the story. Unfortunately, it sounds like you won't be able to enjoy the real story due to the performance issues you're experiencing.