By the looks of it, Ronaldo could get upset here as well, which I wouldn't really blame all on him considering the type of players he plays with, but the fact that he got here when they were leading the league and they may lose the league after he got here will definitely cause a lot of mockery. That doesn't mean that he was the reason for it, but it will not stop people from mocking him of course, just the situation itself is sort of funny already and that is why I would guess that there will be a ton of memes and videos mocking him in the end this season if they can't win the title. They still have the chance, but they just need to fight much harder.
I second that too, there are quite a lot of Ronaldo haters all over the internet, people waiting for him to fail or be put on the bench so they can make fun of him, i know it is all part of the banter, but sometime last year i began to think if maybe those in higher authorities actually somewhat dislike Ronaldo, not that it matters though, but it feels like Fifa and some of the other governing bodies are Messi fanboys.
Having said that, Ronaldo's arrival for the amount of money in question raised the expectations, of course Al Nassr is expected to win the Saudi Pro league, and if they don't so many people would turn to Ronaldo and ask what his impact has been in the team. Well there are still many games to play, and i think Al Nassr can do it, i hope they win the league because of Ronaldo.