As much as there are anti feats, there are also dozens of actual speed feats in favor of this verse.
The thing is, I wouldn't have an issue with it when lightning wasn't consistently portrayed as the fastest thing in the verse, aside of light, when the peak of the characters literally move and attack with it. Kakashi cutting lightning is a statement and can be meant symbolic, at least it was never shown he had actually cut through lightning, unlike Ay who legit moves with it.
Even Big Mom's real lightning attacks managed to hit the supernovas because they were able to follow them:
Prior to that, she managed to catch them off guard when they weren't paying attention:
When G5 Luffy was fighting Kaido, he was grabbing the lightning before it land to the ground, threw it at Kaido and later one easily grabbed it again and used it as a robe:
Have we seen such speed feats of Naruto high and top tiers? Those are pure on panel feats, no statements btw.