How do I instantiate an objects direction and speed seperately?

I have created a bullet spawner class that can shoot bullets in a set direction, but now I am trying to add a mode where it gets the players position and fires a bullet towards the player.

I have managed to make it fire towards the player, but the bullets speed is way to high when the player is far away and way to slow when it is close to the spawner. How do i instantiante the bullets speed seperately from its direction?

Or is there a better way to get the correct vector towards the player?

below is my class as a whole.

 using UnityEngine;
 using System.Collections;
 
 
 public class bulletSpawner : MonoBehaviour
 {
 
     
     public GameObject Bulletprefab; //Which bullet to use
     public GameObject spawner; //the spawner that creates the bullet
     public Rigidbody2D rigidbody2D; //Create the rigidbody variable
     public float speed; // The starting speed of the bullet
     public Rigidbody2D clone; //Gives acces to the rigigbody of the clone created
     public Vector2 direction; //the direction of the bullet
     public float gravityScale; //how much gravity shall affect the bullet. 0 if no gravity
     public bool findTarget; //if the bullet should fire towards the player on instantiate
     public Transform Player; //the players position
     public float maxRange; //if player is closer than the maxRange, it can fire 
 
 
 
 
     public float timer; //how many seconds until the spawner starts shooting
     public float restart; //How many seconds between each shot
 
 
 
     // Use this for initialization
     void Start () 
     {
         
         rigidbody2D = Bulletprefab.GetComponent<Rigidbody2D>(); //get the rigidbody2D component attached to the object
 
 
     
     }
 
 
     
     // Update is called once per frame
     void Update () 
     {
         timer = timer - 1 * Time.deltaTime; //withdraws 1 from the timer each second
 
             if (timer <= 0.0f)
         {
             
                 //Rigidbody2D clone;
             if (findTarget)//if it shall fire towards the player
             {
 
 
                 if (Vector2.Distance (transform.position, Player.position) <= maxRange)//check if the player is closer than maxRange
                 {
                     //get the angle between player and spawner
                     direction = new Vector2 (Player.position.x - spawner.transform.position.x, Player.position.y - spawner.transform.position.y); 
                     //Create a clone of the bullet as a Rigidbody2D
                     clone = Instantiate (rigidbody2D, spawner.transform.position, spawner.transform.rotation) as Rigidbody2D; 
                     //Set the speed and direction of the object.x
                     clone.velocity = transform.TransformDirection(direction*speed);
                     //Sets the value on how much the gravity shall affect the object. 0 if there is no gravity
                     clone.gravityScale = gravityScale;
                     timer = restart; //restart the timer
                 } else
                     timer = restart; //restart the timer
                     return;
             }
                 
             else//if findTarget is false, fire towards a predefined direction
             //Create a clone of the bullet as a Rigidbody2D
             clone = Instantiate (rigidbody2D, spawner.transform.position, spawner.transform.rotation) as Rigidbody2D; 
             //Set the speed and direction of the object
             clone.velocity = transform.TransformDirection (direction * speed);
             //Sets the value on how much the gravity shall affect the object. 0 if there is no gravity
             clone.gravityScale = gravityScale; 
 
             timer = restart; //restart the timer 
         }
     
     }
 
         
 }