I have recently bought a new TV, the LG OLED65C9 PLA. All sources are routed through my Denon AVR-X2300W and connected using HDMi 2.0a cables. Do you think I should upgrade all my cables to HMDi 2.1 type? Also, I currently store many downloaded films on my Dell XPS 15 laptop and view these by connecting the computer via an HDMi cable to my Denon AVR to watch on the LG TV. Do you think I would be better off connecting the computer direct to one of the LG TV’s HMDi ports?