[Steam Deck] Could use some optimization and/or graphics options.

[JohnEdwa]

Played through the demo on the Deck, and while the UI and controls work without any issues, it's rather heavy on the performance side, in some places unable to hit 60 fps while running the fans and draining the battery like a AAA game.
I took a few screenshots to illustrate, giving the stats a few minutes to stabilize between each - https://imgur.com/a/YeUKTIn

I would really be good to give the option to tone down the background 3D graphics quality in exchange for lighter performance and longer run time.