Gane is significantly larger, and faster than Pereira. Add in the fact that Gane's one real glaring weakness is grappling, which Perriera doesn't really dabble in is a very, very bad style match up.
I admire Pereira's fighting spirit, but fighting Gane at heavyweight seems like an extremely tall task - especially at that age and with the amount of weight he put on. I seriously doubt it gets better from here.