The default is 4K Mode, and when I try to change it to Performance Mode, the setting doesn't appear to take: If I back out to the main pause menu and then went back into Advanced under the display options, it would appear that the setting had reverted to 4K. Has any one found a remedy for this? I have looked everyhere and read of others with same problem and a quote from the company that they were going to fix this but it still seems broken.