Are some races genetically better at certain things than others?

Only in a very loose sense. The mutation in the beta hemoglobin subunit coding gene that confers resistance to those possessing it, sickle cell trait, could be said to be " better " in malaria country than those not having that trait.

Humans are rather invariant genetically though. Still, we do not have all the answers and medicinally, at least, we pay attention to the genetics of variant human populations.