You are opening a hornet's nest with that question.
The ability of a particular individual (within or across the ethnic groups) differs along with the person's ages, health conditions, human relations, or the degree of tiredness. It varies from time to time for an individual. or varies from person to person at given circumstances.
Every individual (across the ethnic groups) are special.
same goes for physical ability but we openly accept that some races are generally better than others in that area.