Spriest dmg dwidling by the week

I’ve noticed that I fall significantly behind on Sun King, Council of Blood, Stone Legion, and Denath - fights that you would have thought shadow would traditionally slayed at. I think our sustained cleave took a massive hit when we moved away from apparition damage. That will change in the next week or two when we unlock our second potency slot and can spec +40 apparition damage. I think that plus higher haste values will make our cleave much stronger. I had a heroic Inerva parse and a few sludge kills that really gave me the chance to unleash my damage, but some of the more movement heavy ones really punish us. This gets way worse during mythic progression. So far my logs have been wildly inconsistent and it’s been quite frustrating.