If you don't have the flail, imo you shouldn't run blessed shield as your only source of damage. Drop zealous glare and provoke and get actual cooldowns you can use instead, like judgement resolved, law of valor, condemn and heaven's fury(you have the 3beam flail, might as well use it). Then blow up trash with them. Pop everything on elites. I don't know that how I played mine, I don't feel blessed shield even with the shield is good enough with the terrible wrath generation of the class and slotting skills that only increase wrath generation but only in multitargets setup(which are where your damage is highest anyway) seems meh.
Item wise though, the crafted shit is best until you replace with akkan, with a few slots where you could use stuff that's different. Bracers Reaper's Wraps, belt there's a few better ones(100%dmg on chests, the blinding one for control, witching hour/hellcat for damage etc) then you'd change the crimson set piece to boots(I think that's the other part?) and replace cains, you could use aughild's set if/when you find that, replace rings obviously with bounty one and SoJ, helm with holy andariel and so on. There's a lot of shit to upgrade to be honest but yeah a lot of drops aren't gonna be upgrade even in your non perfect slots.
I guess main itemization issue is there's still too many trash legendaries and too many trash stats, so even with smart loot, most of the loot you get is still trash. Granted that's kinda the point of the game but it can be annoying. I think my main problem with the design is there's a few build changing legendaries and a lot of higher stats rares that you would never use(unless they roll the good stats then you replace your rare with a 5% gooder stats increase). I wish there were more legendaries changing skills, even though not all of them have to be super good. For example the DH quiver that lets you drop 2 sentries is pretty shit for everything but ubers due to the cooldown on sentries anyway, but it's something that's unique and if you wanted to make a sentry build you'd go for that.
I think they need more of these, shit that's not necessarily super good but does at least something for a specific build. Every "main" skill should have a legendary changing it. I look at the DH legendaries and there's nothing that affects Rapid Fire, Impale, Chakram, Multishot or Cluster Arrow(cindercoat but that's fire specific, not skill specific, just tends to be more efficient on high cost skills). This is most of the hatred spenders of the class, aka the main skills you're going to use. You don't even have to be a genius to figure out affixes for these, Rapid Fire piercing %, Impale piercing %/multiple projectiles/bouncing/cost removal, Chakram larger size/multiple chakrams/shuriken cloud effect on every rune, Multishot ressource managemeent/aoe, Cluster cosmetics cause the skill is already too good.