I think you should lower floor to 500 for farming since any higher won't increase tier crystal rarity on floors and after floor 1000 , there won't be anymore legends that would be found in higher floor so my max limit is 1000 for specific items like Eternalized Amulet and Ring (dust exists too), floor 500 for crystal farming constantly, etc. Floor 200 i farm just for gold and tons of legends to salvage into dust or convert into crystals (eternals and crystal legends are common there too but not short in floor 500).
I'm not surprised you climbed this high though, Crushing Flames is a monstrous set that really made fire more viable with crushing blow to climb floors easier and do it for many floors+ inferno+ demonic and other things.
Anyway add Eternalized (5) for Eternal finding and converts (up to you as Obi wan suspected that it might not be working properly) , Crystalline (use if farming crystals in 500 and finding crystal legends) , Nadroji (for rare legends and legend pet) , Optional is Mythical if short on mythstone but floor 500 is better.
Make sure to have Max Item Drops , Max Gold Find, Max Luck, use fortunate +treasured ascension perk and another good option is Epiphany set to raise the caps by 25%. Of course invest in hirling too.
Then have a look at this guide to help:
For dmg, crushing flames (5) or higher, Inferno , Demonic is option, Bleed 50% dmg or vampiric touch, 200% WD on weapon that you mainly use, a certain amount of ED% (300% or so is nice), keep the weaken, keep the multi and extra attack for wand, the other affixes look okay. Glasscannon, Barbarian, Push the Limit will increase dmg though. Hero Points, Sorcery talent 20 doubles dot or 40 to triple dot dmg, Amplify, remove effective as I find that it reduces DMG when using high weaken of 90-100% or higher. Keep 30% elemental critical, Use exposed only if you have piercing attacks (Wand with 2x 50% pierce chance mythstones), Momentum + move speed for a nice dmg boost and dodge /block to survive attacks.