Thank you for the feedback.
1. On the difficulty, its right to improve that. Any other unappealing look and feel can help us to look into.
2. Yes, Im trying to adjust some settings. Not easy to test movement behavior because of many paths of layout. Hopefully we can find the settings that makes it smooth to overall layout soon.
3. No, please just share here. The best way of a great game comes by gamer itself. :D