Hey!
Straight on the point:
1. There's no unnecessary plugins.
2. UI/HUDs aren't responsive yet. This will be polished later.
3. Already fixed last year.
This first demo is already (very) outdated. There was a lot of polishing work that haven't been done (did it only to get performance infos from Windows users, since I was using a Macbook to develop the game), but now changed drastically.
Right now I'm refactoring all the game and polishing the base gameplay. I used to post a monthly devlog on Tumblr, but since they changed their politics, I kept posting more often on my Twitter.
Thanks!