In Fallout 4 if you come to the texture, they become blurred, even at high graphics settings.
The problem with blurry textures in Fallout 4 due to poor setting the config file.
To install the patch solution that enables HD textures in Fallout 4.
Installation – Install the patch in the game folder.
Download – Fallout 4 patch HD
P.S. The patch is easy to activate the HD textures in the game.