system
A chat on subreddit /r/pcmasterrace
human
Eh, the whole point of ultra preset always used to be that all optimizations that could negatively affect image quality are off. If you want optimizations, turn the settings down to high preset which usually looks nearly indistinguishable.
gpt
Ultra also usually cranks bad settings you probably don't want like motion blur and chromatic aberration. Not that they usually affect framerate that much, but every little bit helps, and games look better without them.