He didn't have a good day, doesn't tend to against the better sides but scores against the others.
Just had a look, after 21 games last season, City had scored 53. This season its again 53. Haaland has 25 of those, scoring 2 on 3 occasions and 4 hat-tricks. Last season, 8 players finished the season on 7 or more goals and they had 16 scorers, this season only Foden is on 7 so far, everyone else is 4 or less and only 10 scorers. Basically, his signing has fucked their attack right up, they are now far too reliant on one player.