BRD personal DPS varies a lot due to Crit procs, so you will see larger deviations compared to MCH. Sometimes you snapshot the correct raid buffs but you just get little to no procs. Other times, you keep hitting Refulgent Arrow, Bloodletter, and Pitch Perfect one after another for a while.

BRD is easier to play at a base level than MCH. MCH has a much stricter rotation compared to BRD. You have to keep pressing your buttons in a certain order to keep your potency up and align your buffs/moves for Wildfire every minute. There are several Wildfire variations based on your proc luck if you want to be optimal. If you mess up on BRD, it is probably okay to fix your rotation since random procs may favor you that run.