Thank you for that.
I'm coming from an LG Cinema (5 years old) that I think was absolutely incredible. The PQ has been nothing but trouble so far.
I went ahead and replaced the 1030 with a 1660 TI, connected the HTPC directly to the TV, and a lot of the lag is gone, but it's still noticeable.
I've setup the HDR/Input accordingly (also on XB1).
Whenever I have HDR Content on, it's incredibly hazey. Not just 'oh, a bit of haze' but like... literally hard to see, giant screen-wide halos, and it seems like the contrast drops by a lot. On XB1 it's not as bad, however, the reds and purples are eye-piercingly intense, the intense blues and reds seem to have artifacts.
I went ahead and tried replicating the calibration settings from rtings for this panel but honestly... I'm far from impressed. I have my 'old' LG 60LA7400 side to side and HDR aside, the LG blows this out of the water.
I'd really, REALLY appreciate some advice from you here.