Man, you clearly do not understand football at all. There's a reason why Ronaldo is way better big game player than Messi is. I'll tell you it right now: Because he can adapt. He can adapt to the flow of the game, he can adapt whether enemy/his team is playing posession or counter attacking, he can be in the box waiting those headers if nothing else works, he can play LW/RW/CF and he's way better off-the ball compared to Messi, which is the most of the time you're spending in a game. Messi is literally ideal when you're having the ball 80% of the game and you're controlling the flow of the game and that's where Messi is at his best but unfortunately, in those big games against bigger teams or NT when your team isn't that good compared to your actual club he isn't versatile as Ronaldo and therefore, he isn't doing that great on those games. You can throw Ronaldo on any situation, any game or any team and he will get the job done where Messi will be struggling.
There isn't a single question mark on Ronaldo's career or game, but there's couple in Messi's. Those question marks are there for a reason, because people ain't sure. Everyone is sure that Ronaldo is a lethal weapon and will produce, no matter what so you can stick up those %'s anywhere you want, because it doesn't include the situation you're taking the shots, ie. being surrounded by 3-4 defenders in the box and trying to sneak the head or foot there to score.