Solved
100% GPU Usage
Product: Battlefield 1 Platform:PC Summarize your bug GPU usage jumps to 100% when it would usually be around 85%, Framerate drops from solid 120 FPS to around 80. How often does the bug occur? ...
Update:
It seems that switching between DX11 & DX12 at some point causes the graphics settings to reset to AUTO, this in turn caused all my settings to go to ULTRA
this caused the increase in load and decrease in FPS performance I was experiencing.
FYI : DX12 currently causes crash at map loading screen.
