I don't know if it's my PC, but even on low quality everything was very slow. Maybe lowering the quality of lighting, reflection and shadows would solve this, of course, on low quality, because I think it should be for weak PCs, and weak PCs don't run Lumen well. A standard Screen Space and Shadow map already solve this. Otherwise, I found it quite tense and challenging, I myself always died before I could solve any puzzle on my cell phone lol
I liked the game, I think just a few more lapidities and better optimization would make the experience much more fun.