Yeah, MC original traits got overwrote, he is anything but lazy right now, he does know about the game, but less that what a isekaied player usually shows, but being a dev he should knwo more.
He did use game knowledge to get some advantage, and thanks to playing around with the character he counterbalanced his negative points, but for now it doesn't truly feels like a mixing of original villain and isekaied MC, the villain seems to take more.
Well, MC doesn't want to be a real villain, he wants to erase the death routes, but can't simply erase the body previous actions, he doesn't even have memories and so can't make ammends, apologize, compensate or think about the people that hate him that weren't in the game he tested.