I am so curious how many attempts it takes to get so good at any particular song. I have never gotten an All Perfect before. I have only been playing maimai for two years. The highest difficulty I can clear is certain 13s that I have practiced a lot.
It really depends on the song and your ability to sightread I guess. Not really a set amount of attempts until you feel comfortable with the song but eventually you will. It’s also a good idea to maybe practice sightreading songs by constantly playing new ones.