It works different because when you drag / drop in the same window stuff works different.
But this is already on my todo list. But there is not at the top of the list
But it is there
btw
Keyboard is faster. Mouse require you to move the hand from the keyboard to your mouse.
Commander styled file managers are made to use from the keyboard first. and mouse second.
Specially all normal operation as navigate, selection, copy, view and so on.
But if you not familiar with the commander styled key setup and uses Windows Explorer Styled mouse/key setup you will not get that advantage.