Hi Rick, We appreciate your feedback on the response time, and for optimal performance, we ask that you please ensure you've got the latest firmware version installed on your DU8000 TV. You can check this by going to Home > Menu > Settings > Support > Software Update. You may also want to further optimize performance with the self-diagnostic tool, which checks memory, frees up unused cached memory, and closes background apps. Go to: Home > Menu > Settings > Support > Device Care > Start Device Care. Below are some tips to help improve picture clarity: 1) HDMI cables are recommended for optimal HD viewing. 2) If you have an analog cable box or satellite box, upgrade to a digital cable box or satellite box. 3) Change the output resolution of your devices, such as digital broadcast receivers, IPTV, and set-top boxes, to UHD or HD. 4) You can further adjust your sharpness, brightness, contrast, color, and more by going to Settings > All Settings> Picture > Expert Settings 5) Choose a Picture Mode by going to Settings > All Settings> Picture > Picture Mode and choose from Dynamic, Standard, Natural, Movie, or Filmmaker Mode. 6) For optimal motion image performance, you may want to adjust the picture clarity setting by going to Settings > All Settings> Picture > Expert Settings > Picture Clarity Settings. Should you ever have questions or need help with TV features, specs, or operations, we are here to help. You can call us at 1-800-SAMSUNG, 8 AM - 12 AM EST, seven days a week. Our LiveChat agents are also available by clicking on the ‘Support’ link on our website. ~ Samsung Advisor