The up scaling can vary greatly from tv manufacture to the next, in my research LG and sone had the best rated up scaling, but the articals I read said to expect many patches from both the tv makers and the console makers during 2017.
They still have not settled on a standard for hdr10 or dolby vision ,so its a hit and miss right now to get a good set up
Just keep checking and update both your tv and your console when you can