SQLite doesn't have any special way to bulk insert data. To get optimal performance when inserting or updating data, ensure that you do the following:

• Use a transaction.
• Reuse the same parameterized command. Subsequent executions will reuse the compilation of the first one.

using (var transaction = connection.BeginTransaction())
{
    var command = connection.CreateCommand();
    command.CommandText =
    @"
        INSERT INTO data
        VALUES ($value)
    ";

    var parameter = command.CreateParameter();
    parameter.ParameterName = "$value";
    command.Parameters.Add(parameter);

    // Insert a lot of data
    var random = new Random();
    for (var i = 0; i < 150_000; i++)
    {
        parameter.Value = random.Next();
        command.ExecuteNonQuery();
    }

    transaction.Commit();
}