Hello, I spent a long time troubleshooting why cloud's on hit effects cause very bright flashes and finally found a fix, I made a guide about it on steam.
https://steamcommunity.com/sharedfiles/filedetails/?id=2836500979
Comparison image: https://i.imgur.com/8URBXCw.png
Just wanted to share so no one goes through what ive been through to fix it lol
TLDR: use FFVIIHook to enable console then use command "r.BloomQuality 0" (without quotations)