The game looks great but not just the controls are confusing, the camera is sometimes taking way longer to switch to the other one. Also, seems very confusing on what to do.
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?