We already know this is true of Headstart. Common sense tells you it would be even less effective for college kids.
IIRC when I was in college, the rule of thumb is that most classes require about 40 hours of outside work, 50 if there are labs. Harder classes require more.
Used to take six to seven coursed per semester three semesters a year. Got out a year early. Studied and worked hard those years. Little debt.
Why do kids need college when they already know everything