I'm pretty tech challenged, so my question is: given a camera like the Nikon Z6, can firmware upgrades ultimately get that autofocus system to be as feature-rich and perform as well as the Sony a9 for fast action, or is there a hardware component that would need to change as well? Same question for EVF blackout/lag in high speed shooting... can that be corrected solely by firmware? I realize Nikon would have to want to get it to that level but is possible solely via firmware? I know the 3.0 update is an improvement but can it get all the way to Sony a9 level via firmware alone? Thanks in advance!