I have an old FX-8350 processor, 16GB of RAM, and a 3060 RTX video card. I locked the FPS to 30 through Nvidia Control Panel and it runs pretty well, better than I expected on an old 8 (sorta 4) core processor from 2012. Before I locked it the FPS kept varying between 30 and 60 and that made me feel queasy.
The main thing I don't like is how faded/hazy many things look, needs some contrast or sharpening. I installed a mod but it didn't go far enough for my taste.
Sounds like you may want to look into reshade. There's a ton of reshade presets up on the Starfield nexus, many of which may make the improvements you're looking for.
Yep that will be my next step, too busy playing for now lol. Hopefully Bethesda will add some things like brightness/contrast, FOV, post-process level, texture quality, and sharpening.