Sounds good!
On JRVR Settings: There are 2 parts to think about in your setup
Performance Setting are under the "Scaling" and "Advanced Tabs" to which I've attached a screen shot of the "Highest". The key on here is the Scaling. You get Sigmodial Light, SuperRes, and and for advanced scaling FSRCNNX in both 8 and 16 options. I can run FSRCNNX16 on all but high frame rate stuff like BillyLynn on my 1660Ti and no issues at all on the 3090. You may need to see how you go on the 1080Ti.
Output contains all the config items related to HDR Passthrough or Tonemapping (and if tonemapping what curves to use, brightness, etc etc) and you will need to set this to suit your HW. The only feature in here I make sure is Unchecked is "Dynamic Peak Detection" as per the note it "can result in shifting brightness").