I think if you don't stutter step and/or do the other crazy things Wudijo and other top DHs do, GR93 with your gear/paragon is quite a good result already. To go higher you'll need to either simply become more powerful (higher gems by doing some group GRs, though it's difficult to find a spot as a DH; more paragon, better gear) or "step up your gameplay" which includes stuff like stutter stepping.
What do you reckon is your biggest limitation, damage or survivability? What caught my eye is the fact that you have incredibly low HP (less than 500k) due to the fact that you have almost no vitality on the pieces where it could be an option (e.g., shoulders, hands, offhand). Sometimes just becoming a bit more tanky allows for more time to shoot because you have to vault less often. Also makes sure your discipline always is super maxed out. I also don't like stutter stepping, and I found it good to always go a bit more defensive (sometimes even by switching one item to a defensive choice, such as Esoteric, though with that setup of course 99 isn't an option - but I haven't tried to really "push" with UE).
Maybe someone else will provide some insights, it's been some time since I played myself. But you made me consider going back and trying what I can achieve as well... just waiting for the post-season "gear merge" 
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