Okay you are an uchiha fan (who does'nt know much bout genjutsu) the moment sasukes eyes and raikages were locked, sasuke coulda casted the genjutsu on raikage, instead, he did'nt do it, you can't outrun eye contact after you have already seen the eyes, how is that even possible? You see my eye balls, then you run away from me despite we already having seen each other? Damn, I don't even know how to comprehend this, madara having to catch raikage is a different thing, madara was in susano and its easier to fight someone in a giant avatar and avoid eye contact than a normal human, and its not raikages speed that saved him, it was him not looking in madaras eyes that saved him (despite madara being in an avatar and not being a genjutsu specialist like itachi), genjutsu is instant, or rather instantaneous, as soon as you see, you are doomed, go rewatch all the genjutsu feats in naruto, itachi looking at deidaras eyes in an instant he was caught, naruto looking at itachis finger, sasuke looking at sakura in an instant, sasuke and the bijuus, it was soo fast he caught them all in a glance, madara and kid ohnoki, itachi and orochimaru, itachi and kakashi, sasuke and cee and many others, genjutsu is ****ing instantaneous