Overview
Simple go to this (Default) destination:C:Steam GamessteamappscommonBattlefield 3Right-Click your mouse button and click New, Text Document, and rename it “user.cfg”.Paste this command in user.cfg file: “gametime.maxvariablefps 1000″Save the file and you should now be able to run unlocked framerate. And yes, you can adjust framerate target at anytime, anywhere.
BF3 (Default) Folder Destination
Go to this destination: C:Steam GamessteamappscommonBattlefield 3
Right-click your mouse button, select New, and click Text Document. After that, rename it as user.cfg.
*Note that you can change or alter installed destination anytime you want, in case if you’re running low on hard drive space.
Command for unlocked framerate
Type this command: gametime.maxvariablefps 1000
Then save the file.