Well, current Kise is OP to an extent of the five minutes, and if he goes past those five, he'll probably be benched for the rest of the game if he goes perfect copy to early because of his injured foot. I don't think he will able to beat Akashi, because Kise's emperor eye is not the real thing and shouldn't be compared to the real thing(Akashi said this) and with Akashi having zone, which immensely increases his speed Akashi should be able to beat Kise, probably without zone, since Akashi was also able to ankle break Kagami in Zone.
Also, Kise does not have zone as compared to Murasakibara, Akashi, and Aomine, Though I think he has a more or less chance of beating both Mura, and Aomine if it's a literal 1v1 to 5 type of thing, typically 1v1's in basketball don't last too long.
Honestly not even that, I still believe Mura, and Aomine as well as Akashi is still better then him, because the moves that he copies are just slower, compensated moves of the GoM, he replaces what he lacks with something compensated, just to try and match. Just my opinion though.