Gifted/talented/Genetics, those terms simply describe people with an edge in a certain sport, competition, being talented means you can progress at a faster pace then others of not your talents, and perhaps those that are gifted have a higher eventual potential.
However none of those things means much without hardwork.
Tony Hawk SUCKED at skateboarding. Through EVERYDAY practice for hours and dedicating his life to it he became good. Bruce Lee, was extremely weak as a kid and had multiple health problems, through very rigorous training and tons of learning he became strong and one of the best martial artists to have ever lived. In Japan a kid driver in 1980s brought drifting to mountaine racing, starting out driving the guy was a terrible driver and a slow learner, he later became a champion in circuit racing. There are many more examples of such people throughout the world.
The point is an average person will never see his genetic limit. An olympic level athlete thats been training all his life, dedicated all his time to the sport yea he might. People like Einstein were a genious, however an average person with 100 iq is capable of understanding everything he wrote, and some pretty extraordinary things himself.
Once again a person thats an olympic sprinter that trained all his life, and dedicated all his time to the sport is capable with his talent to reach some pretty amazing times. But that doesnt meant that the average guy isnt capable of training to run a second slower than him which would still be top 20% percent of people in the world.