The thing is I don't think he will win you over, take out his mistake last night and that's how Lloris plays, if you weren't happy with that and you felt nervous every time the ball went near him, then you won't be feeling any better going forward.
No if he carries on doing the same things but it stops leading to fudge-ups and goals conceded and he goes a few games without conceding following stupid mistakes and we start looking solid at the back and stop conceding when he plays then i will start getting confidence in him.
If he continues the way he is and it leads to a goal-conceding fudge-up once in 5-10 games then I'll think i was right to be concerned.