Any other 1TB Touchbar owners experiencing lag on their machines? Particularly in Safari when typing in the address bar, clicking on your favorites bar, switching between tabs... I get considerable lag. 3-4 seconds delay before text is input, or the action completes (switching tabs, opening a new page), where the beachball pops up and spins. I had this happen on 2 1TB machines, but not on any other configurations. Both are refurbs, so I don't know if that is a factor. Both were fine in the first few days, but started having the problem after 1 week.