This mod only effects the visual animation for Boss Action Superchain in the P12S Doorboss (effects each instance of the action: 2A 2B etc...).
It removes the massive, bright, and lingering flashbang that happens in the middle of your screen.
While you can hear where the chains spawn before you see them...this mod technically allows you to see them faster--however, the reason I made it was more for those who struggle with visual impairment or visual overload.
I personally get lingering perceptual visual artifacts with high contrast strobe effects like this, so this animation not only effects my ability to see what happens afterwards due to this lingering effect, but it also has caused me headaches when progging this fight.