I don't care much for Ronaldo the man, at least what I know of him through the media and his behaviour, at times, on the pitch, but the guy deserves the upmost respect for the standards he's maintained for the last decade. He's an incredible, phenomenal footballer and I'd be very hesitant about throwing around things like 'declined massively".
He'll probably find a way to put up better numbers in the next 5 years than he has in the last 5! đ He puts other footballers to shame with his ambition, dedication and sheer hard work, I wouldn't put anything past him.