The mods creator offers the following description of it: “FPS dynamic shadows” mod by creator Shadow Beast adds the ability for the game engine to dynamically shadow draw distance and level of detail based upon your desired frame rate. Are you still wandering through the wastes of Boston weeks after release? Are you playing the Windows PC version on mid-range hardware? If you answered yes to both questions, then I might have the right mod for you! Don’t worry Vault-tech isn’t involved in any way!