Frankly the VN hasn't gotten very far imo so he has time. Character growth needs time to happen organically in some stories, not every protagonist just flips a switch and becomes bearable after a couple things go down.
I really don't know how or why I should be invested in a growth of a character who needs unknown amount of time only to become *bearable* (and the fact that a vn that was in development since forever still haven't gotten very far is its own separate can of worms). I will just go and read better stories with characters I actually want to root for instead.