2D Animation - Animation Goes Extremely Fast

So I have been using a tutorial to do 2D Animation using sprites. This is my code so that when i hid the space button it plays the animation. The issue im having is that as soon as i hold the space bar it plays the animation extremely fast and you can barely tell anything happend. How can i slow it down?

 using UnityEngine;
 using System.Collections;
 
 public class CharacterMove : MonoBehaviour {
     public Animator anim;
     private float forwardMovement;
     private bool running;
     // Use this for initialization
     void Start () {
         running = false;
     }
     
     // Update is called once per frame
     void Update () {
 
         if (Input.GetKeyDown (KeyCode.Space) && !running)
         {
             forwardMovement = 1;
             running = true;
         } 
         else
         {
             forwardMovement = 0;
             running = false;
         }
 
         anim.SetFloat("ForwardMovement",forwardMovement);
         anim.SetBool("Running",running);
     }
 }