I dunno, I've seen other people saying they're not having the same performance issues as you.
I've seen people saying they can't see a difference between 30fps and 60fps at all.
People say all kind of stupid stuff.
Fact is it's a console, everyone has the same performance on there, nobody has a magic console at home that runs it in 60 while it drops everywhere else. If people aren't noticing the drops to 50-59, fine, doesn't mean they don't exist.