How to check if User is part of a group at the same time when using ListMembership function

Hi,

I have developed Clan System in my game and I have coded everything on server-side to make it more secure and I have used ListMembership function in which Title is the admin and using this function I am listing all the available or created groups to my players.

here's my server side code:

handlers.getAllGroupsList = function(args,context){
  var groupMembersList = entity.ListMembership({
          Entity:{
              Id: args.Id,
              Type: "title",
              TypeString: "title"
          }
      });
       
      return groupMembersList;
};


handlers.checkIfGroupMember = function(args,context){
  var checkMemberRequest = {
      "Group": {
          "Id": args.groupID
      },
      "Entity":{
          "Id": args.userID,
          "Type": "title_player_account",
          "TypeString": "title_player_account"
      }
  };
  
  var response = entity.IsMember(checkMemberRequest);
  return response;
};

The next step I am doing is to show the users if they are part of the group or not? So I used IsMember function and it returns the value on which I modify my UI/UX

Now when I am doing this on client side using a loop in which I call my function against each groupID and check if the current player is the member or not.

here's my client side code:

public void ShowAvailableClans()
{
    ObjectUtilities.Instance.DeleteAllInstantiatedObjects(clanPrefabList);
    StartCoroutine(ShowClanAsync());
}


private IEnumerator ShowClanAsync()
{
    Home.Instance.BlurCanvasForBlocking(true);
    PlayfabClan.Instance.GetAllGroupsList();
    yield return new WaitUntil(() => PlayfabClan.Instance.requestCompleted == true);


    for(int i = 0; i < PlayfabClan.Instance.myGroups.Groups.Count; i++)
    {
        int index = i;
        GameObject temp = Instantiate(joinClanPrefab, joinClanParent);
        clanPrefabList.Add(temp);


        temp.transform.GetChild(0).GetComponent<Text>().text = PlayfabClan.Instance.myGroups.Groups[index].GroupName;
        PlayfabClan.Instance.CheckGroupMembership(PlayfabClan.Instance.myGroups.Groups[index].Group.Id);
        yield return new WaitUntil(() => PlayfabClan.Instance.requestCompleted == true);


        if (PlayfabClan.Instance.groupMemberInfo.IsMember)
        {
            temp.transform.GetChild(1).GetComponentInChildren<Text>().text = "Leave";


            Button button = temp.GetComponentInChildren<Button>();
            button.onClick.RemoveAllListeners();
            button.onClick.AddListener(() => LeaveGroup(PlayfabClan.Instance.myGroups.Groups[index].Group.Id));
        }


        else
        {
            temp.transform.GetChild(1).GetComponentInChildren<Text>().text = "Join";


            Button button = temp.GetComponentInChildren<Button>();
            button.onClick.RemoveAllListeners();
            button.onClick.AddListener(() => JoinGroup(PlayfabClan.Instance.myGroups.Groups[index].Group.Id));
        }
    }


    Home.Instance.BlurCanvasForBlocking(false);
    StopCoroutine(ShowClanAsync());
}

Now it is a time taking process and I want to do something in which I send the list of groupID and it returns me the list of booleans indicating my player's membership in each group.