This is a short guide to unlocking the framerate in Unreal Tournament 3.
Open the config folder located in Documents, the file path looks like this:
C:\Users\username\Documents\My Games\Unreal Tournament 3\UTGame\Config
Find and open UTEngine.ini
Find this line:
On your keyboard, press Ctrl+F and type in bSmoothFrameRate=TRUE or bsm for short and click Find Next. It will find the specific line needed.
Change TRUE to FALSE, it should look like this:
Save the file.
Hint: if it doesn’t allow you to save, open the UTEngine.ini properties and un-check the “Read-only” attribute.
Run the game and enjoy!