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Through XL Setting To Share™ , you can get recommended video settings for new game titles from ZOWIE. Here’s a video showing the comparison between APEX mode with other modes (FPS1 and standard)
If you are using a XL2746K/XL2731K/XL2546K/XL2540K/XL2411K and have got XL Setting To Share™ on your PC, you can download APEX mode here and experience the gameplay right away.
The modes are the video settings optimized for the mentioned gameplay and not performance enhancement guaranteed.