We really appreciate your feedback! The "enemies" that chills in a place which I think is the Grass Elemental, it is part of the AI system which means is that if you move close(has certain range) to the Grass Elemental, it will relentlessly follow you which is much faster than the Fire Elemental.
Again, thank you for your feedback! We will try our best to improve in the areas that we lack in this game. :)