As Sheriff Bart famously asked in Blazing Saddles: "Hey, where are the white women at?"
“Hey, where are the white women at?”
Not taking the advanced maths in high school or doing algorithms in college would be my guess.
My daughter-in-law is Chinese (and has a Masters in computer science). When she was in the seventh and eighth grade she was already finished with algebra, trig, and geometry and was ready for calculus.
Contrast that with my sons’ curriculum which is standard at most good high schools, 9th algebra, 10th geometry, 11th trig, 12th calculus.
Of course, my son has always been in a hurry and took all those in a couple of years by taking summer school.