If you got on a good team and won 2/3 games per hour, you could get 7 zeal per hour. Also, while training on pyrefiends wouldn't be the greatest xps per hour, I'd suggest to train up to being able to kill jellies. With a 90+ stat, you could be getting 56k xps just from the zeals per hour and maybe 10k xps per game from training. So...maybe 86k xps per hour??? This is kinda a wild guess.