I wish what you are saying were a "simple fix" but I do not believe it is. I have a 75 Q90T purchased 3 weeks ago and have the exact same issue everyone is describing. It happens where framerate drops when there is little motion (Football-pre-snap or prior to play starting) then once motion picks back up (after snap of football, play starts) the framerate corrects itself. This happens not only wathcing sports but really any content, news, talk shows, movies etc. Just more noticeable with sports due to its nature of play. I first thought this happened strictly on my cable viewing (cox cable) but it is now noticeable when using streaming apps such as NFL Sunday Ticket. This happens intermittingly and has shown no " pattern" per se. I say all this as I don't believe there is a way to change your refresh rate for your cable box or streaming apps. Maybe with your computer, you can but other sources such as cable box or apps, there is no way. Enabling/customizing/turning off Motion Plus settings has zero impact on this issue as it is still there. I have spoken to Samsung Technical Support and they have no fix and have only offered to send someone out to "service" the TV. I have read other owners saying tech support came out to look and determined no hardware issues were found. Sounds like firmware to me but who knows. I am close to my return policy and if Samsung doesn't address this I will, unfortunately, have to return the TV. Love the TV but this issue makes viewing close to unbearable for a $3k Premium TV. * Based in U.S using 1080P Cable Box, PS5 and Built-In Streaming Apps. Running most up to date 1403 Firmware. All HDMI Cables are Ultra High Speed and meet the required spec for HDMI 2.1 and all other necessary specs for device connectivity on the TV, Open to anyone's thoughts and hoping for a fix before the return policy window comes.
... View more