Lot of movies do well on RT. Nearly all the MCU movies do very well on RT. But drops speak louder, especially when such a high percentage doesn't seem to matter or help performance.
Spider-Man prints money. If the movie stood out, it would hold better. Just seems like an average outing instead.
So you haven't seen it but have decided to enter the thread about how it's doing at the box office to give your definitely not biased opinion (while also ignoring the fact that the drop isn't as bad as the thread title might make you think, as I doubt you took the time to read up on the topic before posting) on its quality -- despite it getting a great reaction from critics and fans.
BadAss gonna BadAss.