Strength is caused by many factors, and there is a positive correlation between weight and strength. The greater the natural weight, the greater the power potential. However, the growth rate of strength potential can't keep up with the growth rate of natural weight, that is to say, compared with two people, people with smaller natural weight have less potential for ultimate strength and greater potential for relative strength.

Secondly, strength comes from muscle, and strength depends on the thickness and strength of muscle. Maybe the other person's muscle strength is higher than yours, but it's just wrapped in fat.