Directly underneath the “iPresentInterval=0” line, manually type in these commands, entering one per line: bTopMostWindow=0. Bethesda, the man who published the game is famous for releasing buggy games.
Save and close the file to turn off the game's internal v-sync options and get better Fallout 4 performance in full screen mode.Displays FPS, loading t and other information in the on-screen display (OSD).
