LG added a few new sliders that are meant to fix the near-black gamma problems reported on last year's models. Thus, we have the Black Stabiliser and Fine Tune Dark Areas sliders that can deal with the elevated black, but we also see features like White Stabiliser for bright highlight details in HDR and a Prevent Input Delay toggle that helps reduce input lag with 60 Hz signals.
https://www.notebookcheck.net/LG-adds-new-gaming-settings-on-this-year-s-C1-and-G1-OLED-TVs.528497.0.html