Yes I totally agree with you. Ronaldo needs one or two players like Mbappe or Neymar and Messi. But I'd say age hasn't stopped Ronaldo yet. Having a partner or two to support him on the pitch will certainly improve Ronaldo's performance. We think his performance is currently poor due to his lack of support partners. Al Nasser has gained a lot of fame in the football world after bringing Ronaldo to the club. If they think that is enough, they are wrong. Al Nasser should sign players like Messi or Neymar to the club, if they can then Al Nasser will be much stronger. They can fight hard against any club and snatch victory.
It is not easy to develop good co-ordination with fellow players, when you are new to the team. Talisca has been the leading scorer for Al Nassr this season. The problem here is that he has never played with Ronaldo before. So it will take some time to develop the team bonding and get used to the style of play. And if I remember correctly, Ronaldo was parachuted directly to the match against PSG. He didn't got much time to get acclimatized to the conditions in Saudi Arabia. But IMO, there is nothing to worry. Ronaldo is a great player and he will find his rhythm very soon.