Its been said a while back that kakashi cant handle Gai at this level but have we forgotten kakashi now has the ablity to warp himself toward an opponent. It wont take him much time to use it either. He has increased the speed of kumui in these war arc greatly warping naruto so fast that obito was even fooled(P.S fooling a guy with a sharingan and rinnegan not to mention this is his own ability...thats a pretty good feat). We know that kakashi can now use kumui on himself as well. When Gai uses Hirodora he can simply warp himself away. He can now use kumui like six times so i say he can warp himself to and fro about three times. When he warps back to the world he can use raikiri on guy almost as if he is teleporting towards Gai. Obito could keep up with minato for a while with this tech so why cant it keep up with gai? The fight not be so one sided after all.