Don’t worry this is not a major issue. If you are facing lag when you are playing any videos then fist of all you need to check the video player software some time due to any type of software issue you may face this problem so either reinstall that software or try to play video in any other software. Another problem may be the graphics driver issue. If you system graphics driver issue occur then you video will lag so you can reinstall the updated graphics diver software. If still the same issue then just contact the Dell support for the solution.
• Post ID: 6465438 delaware