That's the lowest opening for a rock movie in a while.
It was a stupid idea to have him helm a comedy, since that's not remotely where his talent lies.
Baywatch as a comedy is already kind of a shaky premise, since the best comedic actors aren't really in prime physical condition. It probably would have worked better as fish-out-of-water story where some tubby shlub joins a team in peak physical condition. Instead you have these musclebound guys who work better as straight men trying to run the show. I guess that's why it's largely dick jokes and physical humor, since those don't rely on delivery as much.