Slow update of Instantiated object (C#)

[modular]

Hello, I have a code where I instantiate a GameObject when I press space bar.

Here I instantiate.

if (Input.GetKeyDown(KeyCode.Space))
{
    Instantiate(MainManager.ObjectProjectile, this.transform.position, this.transform.rotation);
}

And here is the update of the object.

void Update()
{
    transform.position += Vector3.right * 20 * Time.deltaTime;
}

The application is working good but the problem is that the projectile moves after 1 second has passed.

EDIT: I removed the Animation component of the imported model and now it works great!