How to Fix Performance Issues / FPS Drops After a Patch

No Man's sky has a tendency of breaking for some people after patches. Without even touching at the graphics settings :

• FPS are stuck very low, no matter the graphics settings.
  
• The game used to run smoothly before the patch.
  
• GPU usage is close to 0% in Task Manager while playing.

One cause is that the game launches on the wrong GPU : the integrated GPU (iGPU) from the CPU, instead of the dedicated graphics card.

This guide will contain 2 ways to check if you suffer from this specific issue and how to fix it.

Open up the game and go into Display & Graphics.
In the Display section, look for the GPU setting and change it to your graphics card.
(e.g. Here my integrated GPU is named AMD Radeon(TM) Graphics and my correct GPU is named AMD Radeon RX 7800 XT)

• If your game crashes on startup or won't open, try the second method.

The graphics configuration is stored in:

1. Look for the file named TKGRAPHICSSETTINGS.MXML
2. Open the file with a text editor and look for these lines at the bottom of the document:
   
   <Property name="AdapterName" value="AMD Radeon(TM) Graphics" /> <Property name="AdapterIndex" value="1" />
   (e.g. Here my integrated GPU is named AMD Radeon(TM) Graphics)
3. Edit the file by replacing the lines above with the correct GPU name and index:
   
   <Property name="AdapterName" value="AMD Radeon RX 7800 XT" /> <Property name="AdapterIndex" value="0" />
   (e.g. Here my correct GPU is named AMD Radeon RX 7800 XT)
   !!! Make sure you type the exact name of your GPU !!!

4. Save your changes.

5. Relaunch No Man’s Sky.

The game should now run on your dedicated GPU, and FPS should return to normal.

Hope that helped you!