I assume you are talking about the transformations like itachi susano? yeah that gets annoying real fast. You pretty much have to stay out of the main town to avoid the constant flashing until they stop doing the transformation.

But I really wish there was an option to remove that white flash and screen shake that happens every time a chase skill activates. Once you notice it, it kind of makes you not want to play since it feels like it's straining your eyes

I have no idea how long someone with epilepsy would even play the game with the amount of white flashes in each battle but it would definitely be beneficial to at least have the option to disable it or replace it with a transparent image