response data is undefined for a moment

I’m trying to retrieve data from an Api.
When I log the response data, everything looks fine. When i load my component I get ‘undefined’ on each place where I should have data from the Api. When I press on my sidebar, every ‘undefined’ turns into the right data. I think that I encounter some problem with the asynchronous behaviour of my calls but I don’t realy know how to solve this problem.

For information : I’m using ReactJs

function Dashboard() {
  const [isLoading, setIsLoading] = useState(true);
  const [loadedDataFromApi, setLoadedDataFromApi] = useState([]);

  //some other vars
 
  useEffect(() => {
    setIsLoading(true);
    fetch(`https://soccer.sportmonks.com/api/v2.0/fixtures/between/${todayString}/${inTenDaysString}?api_token=oAF3XOevLeC24Zjuzvu56vfOfvyrmHSd11eHr4Ij6ifeJq563NzHeKFrLaJy`
    )
      .then((response => {
        return response.json();
      }))
      .then((response => {

        //FOREACH to loop over every {} in the []
        response.data.forEach((data) => {

          var localTeam = data.localteam_id;
          var visitorTeam = data.visitorteam_id;

          var docRef1 = db.collection("Teams").doc(`${localTeam}`)
          var docRef2 = db.collection("Teams").doc(`${visitorTeam}`)

          docRef1.get().then((doc) => {
            if (doc.exists) {
              data.localTeam = doc.data().name;
              data.logoLocalTeam = doc.data().logo;
            } else {
              // doc.data() will be undefined in this case
              console.log("No such Team found!");
            }
          }).catch((error) => {
            console.log("Error getting document:", error);
          });

          docRef2.get().then((doc) => {
            if (doc.exists) {
              data.visitorTeam = doc.data().name;
              data.logoVisitorTeam = doc.data().logo;
            } else {
              // doc.data() will be undefined in this case
              console.log("No such Team found!");
            }
          }).catch((error) => {
            console.log("Error getting document:", error);
          });
        })

        setLoadedDataFromApi(response.data);
        setIsLoading(false);

      }))

  }, [todayString, inTenDaysString])

  // if we are loading the data return loading .. 
  if (isLoading) {
    return (
      <section>
        <p>Loading ...</p>
      </section>)
  }

  return (
  // some code )