You may want to have a mod move this to the dedicated ArgyllCMS/DisplayCal thread.
Don't get too hung up on rtings' numbers. Their display, equipment used, and software used are all different from yours. Way too many variables for a direct comparison.
You might also be using an outdated spectral correction file. The LG OLED glass has gone through a couple of iterations since the 2016 models that file was built for.
These OLEDs are also usually kept at 150 nits or so during SDR calibration to keep the white sub-pixel from firing up and skewing the results.
Finally, here's a thread all about calibrating the 2021 LG OLEDs. Strongly suggest you read through it if you haven't already. Although most there are using different software from you, it can give you info on the "gotchas" associated with these TVs.
www.avsforum.com
Don't get too hung up on rtings' numbers. Their display, equipment used, and software used are all different from yours. Way too many variables for a direct comparison.
You might also be using an outdated spectral correction file. The LG OLED glass has gone through a couple of iterations since the 2016 models that file was built for.
These OLEDs are also usually kept at 150 nits or so during SDR calibration to keep the white sub-pixel from firing up and skewing the results.
Finally, here's a thread all about calibrating the 2021 LG OLEDs. Strongly suggest you read through it if you haven't already. Although most there are using different software from you, it can give you info on the "gotchas" associated with these TVs.

2021 LG OLED Calibration and User Settings (Not for...
This thread is dedicated to the calibration and user settings for the 2021 LG OLEDs. This discussion is targeted for more experienced users and not for beginners. The individual calibration software forums are best suited for beginners. This year LG will be offering the following models...