If your mother comes to the US she would have to become a US citizen to file for a married child. That would take at least 5 years ( she can file in 5 but it takes time to process and pass the tests and have an oath ) Assuming that adult children visa is still available then , she could file after her oath, which would make her about 80. From the Philippines the adult child class is granting visas at the same pace as siblings. Currently they are working petitions filed in June of 1995, and the line is linger not shorter than it was then. So your petition would be at the head of the line in an additional 23 years, making your mother 103 before you could come ( assuming she or you don't die first )
