Instancias Lentas C#

Question

I am creating an instance of a certain class , and it is taking too long to instantiate . Does anyone know how to solve this ? Suddenly the applications took time to instantiate

code of the class that is taking long to start

    public class Email
    {
        public Email()
        {

        }
        string[] auxVerifica;

        string email, destinatario, rastreio, tipoObjeto;

        String nomeDestinatario;

        StringBuilder resultado = new StringBuilder();
        public void metodoParaenviarEmail(){}

    }

I debugged and it hangs as soon as it gives the new Email command();