Hey so I just noticed something!

If I (temporarily) switch the resolution to 2560x1440 and play through the retro-game at the start; as soon as that sequence ends and you begin talking to the sister (and playing the actual game), I noticed I was able to switch the resolution back to 3440x1440 / 21:9 and game started running perfectly/smoothly from that point forward for me. I also had the game set to the highest quality settings (Very High, using a RTX 3080).

Does your game behave that way for you as well? If so, I’m thinking there’s just something wonky about the way the game’s engine is handling the game-within-the-game scenario when set to an ultra wide resolution…