Hello Kairos,
Actually, the fact that it is a vertical slice is the main reason behind these issues. But you are completely right, we don't know yet if we will be able to improve the ergonomics of the game, members of the team are on different projects now. But as soon as we can, we will improve the optimisation and create a menu to improve the ergonomics and allow remapping.
Sorry for this frustration and thanks for your feedbacks, we'll try to get this fix.
Take care !
JV