You need to focus on what is best for your daughter and what is fair to her and both parents. You both have joint custody. What is reasonable ? I would think it is fair that your daughter has a vacation with her father during a holiday week. Then you can have her the next year holiday week.
If the father wants to be in his daughter's life more, you should be happy. Better than an absentee father for your daughter's sake. You may not be able to be great friends with your Ex - but you have to be reasonable and civil like a business relationship as co-parents.
If the terms aren't fair to one parent, they are likely to go back to court to have a more fair agreement and or try to withhold child support, etc.