I have a WW Rend Barb set up that I managed to get by without dying up to level 98 (but will take 10~15 minutes), however I am trying to put together a LoD + HotA set up and would like to upgrade my LoD as much as possible so I have been running GRs at Level 60 (T13) since that’s a lot quicker and guarantees I don’t die so I get 3+1 chances to upgrade.

I understand when I do this I get more blues and yellows vs running at Lvl 90+ where I almost get all legendaries (may be one or two yellow every time at most), but I am just wondering among the legendaries I get when running at Lvl 60, would the quality of the legendaries would be worse as well? (i.e., if I get, say a Remorseless when running at Lvl 60, it is guaranteed that it would be worse/less damage points than a Remorseless I get when running Lvl 90) or it is completely RNG as well?

Also the more number of times I run GR at a certain level, would the gears I get gets worse as well?