Even against Kaidou save for 1 chapter (g2/3 vs drunk Kaidou), the rest of that fight was a brainless slugfest.
The sad thing is, Kaido is a pure Zoan user whose fighting style is centered around Haki and his club.
Although the majority of Luffy vs Kaido was just both mindlessly throwing some blows for several panels, which was getting repetitive very quickly, the battle choreography started to improve drastically.
But Kizaru? Dude has one of the most powerful and versatile DFs, he canonically taught Sentoumaru this advanced Barrier Haki technique and we see almost nothing of it.
Isn't it ironic that the start of the battle, Snake Man vs Kizaru, looks infinitely times better than whatever happened afterwards? At least Kizaru was acting like a functional character and showed new moves, like the acceleration technique or when he was trying to blind Luffy. But again, everything after that was just Kizaru throwing some lasers or sword swings and calls it a day.
It's just wasted potential. If Kizaru is over-reliant on his DF, at least portray it correctly instead of letting Kizaru behave like a Pacifista.
Dude hasn't even shown hardening so far...
Maybe Oda is keeping all that peak stuff at the last 2 - 3 chapters like usual when Luffy vs Kizaru reaches its conclusion but so far, this battle is seriously one of the worst which Luffy ever had.