Yes Real Madrid is at the top of the standings in La Liga now, they have 4 different points from Atletico and 7 different points from Barcelona. It means they have started to be consistent. Indeed at the beginning, Mbappe and Vini are not compact and maybe a bit selfish with each other, but Anceloti has know how to manage player like this, so that he separated them, and play them in different matches. Yes I consider this is the best performance for real Madrid, and bad performance for Barcelona because they were defeated instead position from Atletico. Actually who are not inconsistent for this session is Barcelona, not Real Madrid.
Real Madrid's current performance is indeed different from their performance at the start of the season. Because as we know at the start of the season Real Madrid performed less than optimally, because at that time perhaps Real Madrid was in the adaptation stage with its new player Mbappe. But now that Mbappe has started to adapt well at Real Madrid, Real Madrid's epic performance is slowly returning. This is proven by the results of matches which Real Madrid is always able to win. Because in the last few matches, Real Madrid has managed to sweep all their matches clean with wins. So with this in mind, it is not surprising that currently Real Madrid has managed to become top of the standings again in Laliga. Because Real Madrid is always able to get out of its downturn more quickly than other teams. 
Apart from that, in the UCL, Real Madrid's performance has also improved at this time. In last night's match, Real Madrid also managed to win the match over Brest with a fairly landslide score of 3-0. In that match, Rodrygo was able to score 2 goals and Bellingham managed to score 1 goal. So with this victory, Real Madrid's position in the UCL is now in 11th place. Even though with its current position, Real Madrid cannot qualify directly for the round of 16. But I am sure for Real Madrid it will not be difficult to get through the play-off round and can also qualify for the round of 16. So with this in mind, we'll just have to wait and see who Real Madrid will face in the play-off round. Because until now I don't know who Real Madrid will face.