Runs on my iPhone 15, but not well. Phone heats up like crazy and processing photos takes a while. The end result is almost the same as the pictures the normal

Runs on my iPhone 15, but not well. Phone heats up like crazy and processing photos takes a while. The end result is almost the same as the pictures the normal camera app takes. I think I must be missing something because this looks like a worse re-implementation of the normal camera app to me. Maybe I need to take the app out at dusk to take some pictures in more challenging conditions? I still prefer the photos from my Pixel over the photos from my work iPhone.