Did you ever wonder how my unreal tournament is performing FPS
Menu > Tools > Time Demo statistics
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>25 is good and can go up to 500 depending on hardware & Display
Direct draw works better than OpenGL but it does not guarantee greater gameplay make sure you get the latest versions
Direct 3D9 vXX or OpenGL at least OpenGL 3.7
Backup your game
Copy the entire C:/unrealtournament folder to a new location or call it d:/copy_UT if you like
Then edit UnrealTournament.ini and User.ini
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UnrealTournament.ini Change game and video related setting
User.ini is you keys and other settings