Because the SAT score of 1530 includes an 800 on the math portion, your daughter does not need to retake the SAT since she is applying as a STEM major & the 800 math should help.
But, if confident that she will improve her score while maintaining the 800 on the math portion, then let her get it out of her system.
Instead of retaking the SAT, why not focus on SAT subject tests or on the ACT ?