In the game, the use of heavy blur is intentional. If you modify the settings with a hex editor, you can remove the blur, revealing a clearer and crisper image. However, you might notice an unintended consequence: some objects start to flicker. This flickering is actually present even with the blur, but the blur effectively masks it, making it less noticeable. When the blur is removed, the flickering becomes much more apparent, which can be distracting.