Ziya at Nexus Mods created a FPS Boost custom preset for Starfield that helps improve performance and visuals. This gives hardware like the ROG Ally a much needed performance boost making the experience way better.
How To Download The Starfield Mod
- Head over to Nexus Mods and create a free account here.
- Download the Balanced preset here.
- Click manual download on Balanced and then click Slow Download
balanced 
How To Install The Starfield Mod
- Find and go to the install directory of your Starfield game. Steam and Xbox Game Pass have different install locations.
- Open Up the
Starfieldfolder and then theContentfolder. It should look like this.
- You want to make a copy and backup your
Ultra.inifile. Place the copy anywhere on your computer incase you want to remove this mod.
- Open up the zip file for the mod you downloaded from Nexus Mods and drag the
Ultra.inifrom inside that zip file into your Starfield -> Content folder replacing the original Ultra.ini you backed up.
drag 
replace
How To Enable The Mod
- For The ROG Ally, You can play at 1080p but I use this mod with the custom 900p resolution for extra performance. You can learn how to install that on your ROG Ally here.
- Set your desktop resolution 900p or keep it at 1080p.
- Launch the Starfield game.
- Go to Settings -> Display and choose the Ultra Graphics Preset.
Important:You can’t make any adjustments to the Ultra Graphics Preset or it would remove the mod.- Go back and Continue your game with better performance.
