When you connect your PlayStation, Xbox, Wii U or any game console to your Samsung TV via the HDMI cable the video may appear sluggish or slightly blurry. To solve this problem, most new Samsung televisions will come with Game Mode which improves the quality of your gameplay and dramatically reduces lag.
First thing you need to do is connect your games console to your television. Then press the Source button on your remote control and select the source that your HDMI cable is connected to. Next press the Menu button on your remote and navigate to System - Setup - General - Game Mode and then select ON and then exit the menu.