I have some issues concerning the rhythm choice of the kiai
It starts off with many inactive 1/2 rhythms by using 1/2 sliders. This is an issue when compared to the verse, which features more active 1/2 rhythms by using circle stacks, because it makes the verses more difficult than the kiai despite being less musically impactful. I recommend you add more active rhythms in the kiai to replace the excessive usage of 1/2 sliders.
Adding more (spaced) circles in the first half of the kiai would also fix the massive difficulty spike in the second half, which currently is causing it to feel unbalanced despite the similar musical intensity.