Probably. Child support is based on needs of child and income and expenses of each parent. To the extent you earn more than your ex, support payments equalize things for your daughter's expenses. The expenses are obviously a larger percentage of the lesser earner's income than of your income.
If you feel payments are unfair you can always go to court and ask to have them reduced.
The response given is not intended to create, nor does it create an ongoing duty to respond to questions. The response does not form an attorney-client relationship, nor is it intended to be anything other than the educated opinion of the author. It should not be relied upon as legal advice. The response given is based upon the limited facts provided by the person asking the question. To the extent additional or different facts exist, the response might possibly change. Attorney is licensed to practice law only in the State of California. Responses are based solely on California law unless stated otherwise.