Currently using: Enyo KingWow Shaman/Singular Windows 10 OS used in Raid/Dungeon Instances FPS drops from a 85-90 to a 15-19 (if lucky 30) If you need more information I can kindly provide it Advice would be greatly appreciated EDIT: Attached KingWoW log and Singular log
Got it when doing a Warlord of draenor dungeon, Hellbreach,Iron assembly and a demon invasion in stormwind