It is difficult to achieve exponential growth when buying a fund, because the fund pursues certainty. Moreover, the positions of the fund are particularly scattered. Unless it is a big bull market, it is difficult to guarantee that every stock held by the fund can rise rapidly.
The fund itself is also a long-term investment variety, which will not be as ups and downs as stocks. The stock may grow exponentially, but it also bears great risks. The fund is less risky and less explosive. But in the long run, the income is also good.