when oro summoned hashirama oro didnt use him at his fullest oro just put him on auto drive, if hashirama was fighting for real he would not have let hiruzin to put a paper bomb on him they were just mindless puppets, you could say they were like robots lol, yes hashirama was at his best but only hashirama knows how to be hashirama the one oro summoned was just a fake that was not hashirama since it did not think like hashi, when edo hashi was fighting he wasnt behaving like the normal hashi would during a battle it had the same power as hashi but couldnt use it to the same extent as the hashirama that was alive, its like sasuke and itachi itachi used tskuyomi in such a way that he could alter your perception of time mean while sasuke has tsukoyomi as well but its inferior to itachi's, edo hashi was inferior to hashi when he was alive they have the same powers but used them diffrently this is another way of looking at it, theres a guy with a kunia he throws it and killsd one guy but theres another guy that is a master at kunai's and he throws it but he kills five people they have the same kunai but what matters is how they use it, oro didnt know how to use hashi's power so it looked like hashi was weak but no hashirama was so strong that he beat EMS madara and madara had help from the 9 tails............
so before you guys go saying hashi was weak and he can be beat so easily go read the magna or anime what ever you guys do