exactly, this is what I am worried about too. I agree that this is not just hardware specific. I think developers are aware that this is the case and I hope they are just keeping it silent until (if ever) the cause of the slowness is found.
And for this I am afraid you are also not the only one. I think McNeel should send a poll to its customer base to investigate if this is a wide spread issue and people are just not complaining because they don’t use V6