Intrepid Slash vs. Mihile's Soul Driver

do you have the speeds for the skills/a way to calculate them? i have been trying to figure this with buster/fury, but so far been unable due to lacking buster speed with a polearm/spear at fast4 and faster3 speed, same with fury

and SD got nerfed after chaos, for both adventurers and cygnus, i can't remember how much, but it should be on one of fiel's modules/extractions

EDIT:


so yea, SD after chaos is ugh tier.

I used this thread as a reference. I'm aware that Soul Driver's delay on there is a bit off, but the overall number shouldn't change too much. I know there's a way to calculate it, I just can't recall where I saw it.