Stop looking for flaws? His flaws are easily identifiable, his shot stopping is nowhere elite level. And his ball playing so far has of course been an upgrade, but hasn't really come to fruition yet.
No need for knee jerk reactions, but de gea saves 2 of those. And Brighton never tend to press goalkeepers, prefering, atleast last season, to flood the middle for the second ball.
I do think he will improve, but we just have to get used to not having a goalkeeper that single handedly wins us matches on a consistent basis.