How to store large data list in sql lite with quik method

Hello team,

using Xamarin forms XAML with C# code

I need the best method to store the data in SQL lite. Please find the below table structure.

Table:

public class tblItemList
{
    [Collation("NOCASE")]
    public string parent { get; set; }
    [Collation("NOCASE")]
    public string child { get; set; }
}

I need to store above 1 lack records, and I have a record list in the table class. Currently, I have for loop storing the table data. It is taking more time to save.

code:

List itemlist = JsonConvert.DeserializeObject>(DecryptString(result));

foreach (tblItemList item in itemlist)
{
    var ddd = await App.Database.SaveItemAsync(item);
}

Table creating method:

public DBworker(string dbPath)
{
    database = new SQLiteAsyncConnection(dbPath);
    database.CreateTableAsync().Wait();
}

Inserting method:

public Task SaveItemAsync(tblItemList itemList)
{
    // Save a new note.
    return database.InsertAsync(itemList);
}

In saving above 1 lack records, it will take 30 min’s, so I need to store in quick method, please suggest any best method for storing data in SQL lite db.