I have this issue today. Got a 5 year old samsung TV that was the top of the line at the time and its still more than good enough as a panel but the built in OS

I have this issue today. Got a 5 year old samsung TV that was the top of the line at the time and its still more than good enough as a panel but the built in OS has been updated a few times and now its so slow its painful to simply change the channel by pressing the numbers and turning up the volume.