I didnt look into your tree but theres a room for improvements among your items. What i personally would do is getting a ring with 300+ accuracy and droping additional accuracy gem for gmp. More projectiles = more procs. Also ideal gloves would have attack speed on them and ideal boots 30 movement speed.
Thanks but I'm currently trying something completely different. I'm now using cyclone full 6L
Faster attacks - cyclone - melee phys dmg - BM - fortify - added fire dmg
Cyclone makes clearing maps somewhat faster also for the bosses I'm switching out ark and put in conc. effect. I also only run RF for bosses. IMO the clear speed with this setup is much faster. boots could use an upgrade to 30% MS yes still working on that.
Gloves with attack speed well its more a luxe then necessary IMO so I will upgrade to attack speed gloves but I'm not in a hurry with it.
I'm not aiming at killing uber I really just want to gain XP and with this setup I think I finally can do that.