Only Barcelona have a perfect points so far (9 points from 3 matches), no one would be wrong to expect them to become La Liga champions this season, but that's too soon to say, we haven't even go to the first El Clasico of the season yet, so even though Barcelona are currently having a good run, we can't know how they will be after that.
About Barcelona's match against Rayo Vallecano, I thought Olmo played well, it's a shame he didn't play from the start, maybe if he played earlier we could have seen Barcelona's third and fourth goals.
Olmo has fit into the team very well, I even remember him more for his long-range shot into the crossbar, it was very beautiful, and Lewandowski is also in good shape by the way. 9 points is good, it is too early to draw any conclusions, but it is good that they are moving so confidently, and Real will go to Las Palmas tomorrow, an unyielding opponent, especially at home.
Everyone was impressed with Olmo's debut, especially when he scored the winning goal for Barcelona. It seems that he's the type who adapts easily, after seeing his club's track record, I was quite surprised to see the initial club in his senior career. He played in the Croatian league (HNL) with Dinamo Zagreb, it was an unimaginable thing that then went to Leipzig before finally going to Barcelona.
Next is Real Madrid, I think because of the good results that Barcelona got, Real Madrid will not easily give anything to Las Palmas, I'm sure Real Madrid will get 3 points even if they play away.