There are a lot of new faces at Real Madrid, and they are currently in the adaptation phase, so give them a little more time, and I think that will give them the opportunity to have good chemistry and become a solid team. This victory is not satisfying, but I see that they have a different kind of football than before, and that is a positive thing. The most obvious improvement is their back line which now looks solid, and it's almost no longer visible sloppy in ball possession.
Madrid was saved by a penalty kick, but I have to admit that it's not easy to adapt quickly when you have to combine the habits of old players with new players and the new style of coach Xabi. So, give them time to understand each other. Madrid fans out there are surely impatient to see their team play as expected.