Hey there, thanks for the feedback!
What part of the controls are confusing? The button mapping or the usage?
Camera wise, are you talking about going from one room to another or switching regions?
I recommended playing with a controller - if you can - if the button mapping on the keyboard is not comfortable for you. If you are talking about the delay in attacking, that is intentional.
If you change regions - not rooms - there is a screen transition and also a title card showing you the name of the area, are you talking about that in regards to the camera being slow?