Fish fillets remake, feedback wanted!

Hello! I'm an open source game developer and I would like to receive feedback about my current game which is a remake of a puzzle. You can find the demo here:
https://codeberg.org/glitchapp/fish-fillets-remake/releases/tag/demov0.1

You can download the whole game too but it's not needed to provide feedback.

I would like to receive feedback on several aspects of the game:

- Performance: Report if there any lag trough the menus and game
- Graphics: Feedback about the redesign of the levels. Most of the levels are created using open source textures or tiles.
- Overall design and experience.
- Music selection

The game does not detect yet when you finish the level, press "l" instead to return to level selection.

Thanks in advance!