Begin by finding the Starfield folder in your documents directory, which is generated when you launch the game. You can usually find it at:

Now, there are two files you need here one is the StarfieldPrefs.ini, and the other is StarfieldCustom.ini, which probably you don't have and you need to create it for some of the settings below.

IMPORTANT: I've noticed that there are some settings that don't work if put in the wrong file, that's why you need both. So be aware of the correct file to put the corresponding settings.

For the first, right-click on the StarfieldPrefs.ini file and choose "Edit." If you are using Windows 11, you may need to click "show more options" to reveal the "Edit" button. Or open it on your File editor of choice, for example VS Code.

For the second, right-click inside the folder and choose "New" > "Text Document", name it StarfieldCustom.ini and then open it with the editor of choice.

Inside your StarfieldPrefs.ini file, search for the [Controls] section.
Then, add/modify the following four lines with the recommended values:

Inside StarfieldPrefs.ini, add a new line and paste in the following text under same [Controls] section.

Here you have two options, either use your sensitivity from past games (like FO4) or convert your sensitivity. FO4 sensitivity should do the trick, but if you don't have it or you want to adjust it again, follow the next steps.

In order to convert to your preferred sensitivity, I've found mostly valid a formula to convert the sensitivity from other game to Starfield.

First, get your Aim Lab sensitivity. If you don't have Aim Lab, find a comfortable in-game sensitivity in another game and use a sensitivity calculator to convert to it (considering your mouse DPI), for example: https://gamingsmart.com/mouse-sensitivity-converter/

Then, use the conversion formula:

Starfield sensitivity = (Aim Lab sensitivity) x 0.2

Example:
If your Aim Lab sensitivity is 0.15, your Starfield sensitivity becomes:

(0.15) x (0.2) = 0.03

Once you've know your Starfield sensitivity, enter it into the five lines you found or created within the same chosen settings file, under the [Controls] section:

After that, if the sensitivity is still too high/low, I often recommend multiplying/dividing it by 2, seeing what happens, and trying again. Then adjusting as needed to intermediate values.

(Personally, with a mouse with maxed out setting of 26K DPI, I use a very low value of 0.001).

For this I think it depends on your personal preference.

However in my case I've tried using around 20x-25x the value of my mouse heading sensitivity, and for me it does the trick.

For example, StarfieldPrefs.ini:

You can try it too and see if it works for you, and then adjust it more if needed.

To normalize the vertical and horizontal sensitivity, add/modify these values on the [Controls] section inside StarfieldPrefs.ini:

Where X is any of these values, based on your Aspect Ratio:

0.03738 for 16:9
0.042 for 21:9
0.028 for 4:3
0.0336 for 16:10

For example, for 21:9 aspect ratio of my 3440x1440p 34" monitor:

Inside the same file, add/modify the following lines in the [Controls] section in the StarfieldPrefs.ini:

Also, if you want more responsive movement, under same section:

In order to fix the FOV, specially when playing on wide screen, add/modify the following lines under the corresponding sections of the Inside the settings file:

1. Display settings, inside StarfieldPrefs.ini:

2. Camera settings, inside StarfieldCustom.ini:

3. Flight Camera settings, inside StarfieldCustom.ini:

NOTE: Personally, I'm using the value of 110 with an ultra-wide monitor of 34" with 3440x1440 resolution

4. There are also some advised additional flight camera settings, useful to make better the 3rd Person view of your ship, inside StarfieldCustom.ini:

For the same, add these camera settings, inside StarfieldCustom.ini:

If you wish to play the game on just full screen instead of full screen borderless mode, you can try with these settings, inside StarfieldPrefs.ini:

The game uses anisotropic filtering set to 4 by default, you can modify it inside StarfieldPrefs.ini:

No performance loss noticed here.

Although this can be changed in-game, I want to add it here because this is one of the things that changes a lot the way you see the game. So you can either set it to 0 inside the game settings / display, or modify the value inside StarfieldPrefs.ini:

To disable the Temporal Anti-Aliasting, simply modify inside StarfieldPrefs.ini:

You can also make some modifications to elevate your ship-building process, offering features like accelerated zoom capabilities, smoother panning and rotation, reduced snapping distances, and an expanded selection of available flooring options (the default is 25).

Inside StarfieldCustom.ini:

You can also elevate the tolerance of Ship Building, by using this setting in StarfieldCustom.ini:

Where X can be:

-0.25 for vanilla tolerance
-1 for more tolerance
-5 for huge tolerance

These are gameplay settings that may improve your game experience.

If you wish to autosave more often, add/modify these settings with the value in number of minutes, inside StarfieldPrefs.ini:

If you wish to reduce the time before you grab an interactive object, or a basic object, modify these settings, inside StarfieldPrefs.ini

To avoid way-point mess, enable this setting, inside StarfieldPrefs.ini

Disables aim-assist and magnetism of bullets. To enable it, inside StarfieldCustom.ini:

Removes the camera shaking while you boost with the ship. To enable this setting, inside StarfieldPrefs.ini

instead of being single press. To enable it, inside StarfieldCustom.ini

These are other settings that may improve your game experience.

If you wish to disable the intro, the menu delay and the message of the day, add/modify these settings inside StarfieldCustom.ini

Unfortunately, this doesn't disable the initial text and Bethesda logo, only gives you the opportunity of skipping the later animation. For that, you would have to download some mod.

Save your changes on StarfieldPrefs.ini and StarfieldCustom.ini files and enjoy!

- The content of this guide was originally based on my personal settings of Starfield and previous Bethesda titles. Also I've been adding other settings I've found around.
- The guide may be modified in future, adding new settings or modifying the existing ones.

Please, if any issue or suggestion post it on the comment section. I'll test it out later and try updating the guide. Thank you!

You may take a look also to these other guides for the game:
https://steamproxy.net/sharedfiles/filedetails/?id=3029785211