Currently Ronaldo is the top scorer in Saudi Pro League, he scored 22 goals while Mitrovic is behind 2 goals from him. But Al Hilal is a solid team, so any player can score a goal without Mitrovic. While in Al Nassr, all players depend on Ronaldo to score a goal, this is why I think Ronaldo will become the top scorer even though they didn't become a champion, because Ronaldo is better in individual skill.
Although the league is still long, but it's hard to imagine Al Nassr can become a champion, they have higher chance in AFC Champions League.
This is what differentiates Al Nasr and Al Hilal in terms of players. Al Hilal's players all have almost the same qualities, so that when playing a match, Al Hilal can attack from all sides or defend with a strong formation. That way, Al Hilal became unbeatable in the Saudi Arabian League (SPL). This is different from Al Nasr, whose players can be said to be less evenly distributed in terms of quality. Because as you said, Al Nasr only relies on Ronaldo to score goals. So when Ronaldo is not playing or for example Ronaldo is not performing well, then Al Nasr will certainly have difficulty scoring goals. Maybe Talisca can be relied on a little when Ronaldo can't play. But still Talisca is different from Ronaldo so the results are not like Ronaldo.
Apart from that, actually all of this happened because of Al Nasr's own fault. The reason is that in the last transfer market, Al Nasr only focused on buying forward players. As a result, Al Nasr's defense is very weak, and tends to always be passed by opposing players, even though the opponent can be said to be weak. So basically the squad that Al Nasr currently has is unbalanced. Maybe in the next transfer market, Al Nasr will have to buy a very strong defender.
Apart from that, in last night's match, Al Nasr had to accept defeat from Al Ain on penalties, because the aggregate of both teams was the same (4-4). In this way, Al Nasr failed to advance to the next round of the Asian Champions League. In that match, Ronaldo was only able to score 1 goal, and that too through a penalty kick. So from here I am increasingly convinced that Al Nasr really needs to be repaired. Because if not, Al Nasr will definitely continue to be stepped over by other teams (in the SPL or in the ACL).