Makes thirst/water drop every 60 seconds instead of every 15 seconds.
Notes
If you want to modify the thirst parameter and more you can use my tool Game Settings Editor.
Installation
Download the mod. Extract its .zip archive.
Go to \Subnautica2\Content\Paks\ and create a ~mods folder in there if you don't have one already.
Drop the files from the mod in there. In the end it should look like this:
\Subnautica2\Content\Paks\~mods\zSlowerThirstDegradation60SN2_P.pak
\Subnautica2\Content\Paks\~mods\zSlowerThirstDegradation60SN2_P.ucas
\Subnautica2\Content\Paks\~mods\zSlowerThirstDegradation60SN2_P.utoc

Credits
Credits to moirai for finding and sharing the names of the assets responsible for hunger and thirst.