Applying for an expedite won't delay your case.
It might delay your case (at a later stage) if you inform them your daughter can only permanently move to the US based on the timeline and agreement you provided at USCIS level.
The CO at your daughter's interview might request an updated agreement or a letter from her father stating your daughter is still allowed to leave to move to the US permanently. Because they are aware the agreement in its entirety has not been met... But, the CO might request that even without requesting expedite if the language of the agreement to allow your daughter to move isn't in the format they usually require...
So, if the father enjoys being difficult obtaining the updated agreement/letter might delay the case.