tsunade ofc she hasnt really shown any outstanding or op feats the only thing thats honorable about her is her medical jutsu even kakashi can take her on or probably defeat her
what do you meen kakashi wouldnt be able to take on/beat tsuadnade he has shown more impressive feats then her plus the his sharigan will give him extra boost hes raiki clones can distract her and he can chidori her to the head and if theirs no plot sheild he can just kamui her head off.