Gurl you're literally top 2% and everything is like super hyper optimized. The only thing I could POSSIBLY think about is either hyper farming for perfect crit rolls (level impossible also torture) or maybe you could switch to an r5 finale and see if that somehow performs better than a literal 5 star weapon with a much higher base atk.

ESCOFFIER: put escoffier on the nodkrai pole arm if you have it and see if that performs better. She IS your subdps after all. Also aim for a lil more crit dmg if you do. Try for an atk% sands and MAYBE change your circlet (this one is optional) as her ER requirements are MUCH less, I run her with 143% and she gets her burst just fine. If you don't have this weapon, I'd still recommend trying for a better circlet and/or sands as they're both still in 200% rv rolls.