Thanks for the honest feedback. I've just uploaded a fix for the stutter, it was caused when new particles are rendered for the first time. I actually had a fix for this already and thought I uploaded it but I didnt actually save the changes on itch! There was a lot of gameplay that I sadl had to cut so i can understand how it can be a bit boring and lackluster... wanted to add enemies, bombs, new resources and points of interest.
If this game has some interest and positive response I might continue working on it
Thanks for playing :)