Please, oh please, do a search!
There is nothing you can or should do, that's normal or could be even a bit LESS capacity loss than normal. Tesla will laugh at you if you ask about it.
Tesla is obligated to do something about it when that loss reaches 30%! Until then, the only time you should contact them about range loss is when the car tells you there's something wrong with the battery or you notice a rapid(like 10% in a week) range loss.