I think the problem with Catholicism is it has become too boring. It needs to stand out with a point of differentiation. Maybe it should go back to its roots and elect a pope like pope alexander IV or pope pius VI from the past that had multitudes of bastard children running around from all the women they were indiscriminately banging.
Or someone like pope stephen who dug up his predecessors corpse and put him on trial. That would certainly get people to stand up and notice. Maybe they could revive the inquisition or self flagellation. I'm sure they'd get a few converts from TD at least on the last one.