There is a famous story that someone once asked the Satmar Rav ZT”L why many Yerushalmi kids learn so well when they’re younger but nothing became of them later in life. He said, “If the kids don’t play when they’re younger, they play when they’re older”.
Rav Matisyahu Solomon once did a study of the leaders of the “masmid” programs as elementary school kids, and checking what became of them. He found NO correlation between kids who did well in those programs and later Yeshiva success. Let kids be kids. He is absolutely correct- go back to raising talmidim, not gedolim.