The article for the tv has you changing the settings for things to value far higher than what the tv supports is this an error or something I need to somehow enable?
The latest Samsung firmware at the time of testing (1056) had a few bugs with this TV:
Hopefully these issues are fixed in a future firmware update.
APR 24, 2019 Samsung has released firmware update version 1251 for models NU7400, NU7500, NU8000, NU8500, NU9000, Q6F, Q7F, Q7C, Q8F, Q9F, that Improved usability. Also removed any freezing . Now the interface is more smoother.