Player Stuttering when moving unity 2d

whenever the player uses its jetpack or when there's a lot of velocity, the player stutters. I tried using interpolate and other things like that but the only outcome was even more stutter. If anyone knows what the cause for the stuttering is, please tell me and if you want to, maybe even explain your answer

here is the player code :

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.SceneManagement;
3.  
4. public class Player : MonoBehaviour
5. {
6.     //basic variables
7.     [SerializeField]
8.     private float speed = 5f;
9.  
10.     [SerializeField]
11.     private float Jumpforce = 5f;
12.  
13.     [SerializeField]
14.     private float JetPackForce = 5f;
15.  
16.     [SerializeField]
17.     public bool canUseJetpack = true;
18.  
19.     [SerializeField]
20.     private Rigidbody2D rb;
21.  
22.     [SerializeField]
23.     private Animator animator;
24.  
25.     private bool isFacingRight = true;
26.  
27.     //runs when game starts
28.     void Start()
29.     {
30.         rb = GetComponent<Rigidbody2D>();
31.     }
32.  
33.     //runs every frame
34.     void Update()
35.     {
36.         //applies force thus making player to move left or right
37.         var move = Input.GetAxis("Horizontal");
38.         transform.position = transform.position + new Vector3(move * speed * Time.deltaTime, 0, 0);
39.  
40.         //changes player animation state
41.         animator.SetFloat("Speed", Mathf.Abs(move));
42.  
43.         //flip the player if facing right or left
44.         if (move < 0 && isFacingRight)
45.         {
46.             flip();
47.         }
48.         else if (move > 0 && !isFacingRight)
49.         {
50.             flip();
51.         }
52.  
53.         //checks if the space key is pressed and that the player velocity on the y axis is smaller than 0.001
54.         if(Input.GetKeyDown("space") && Mathf.Abs(rb.velocity.y) < 0.001f)
55.         {
56.             //adds force from below the player thus making the player jump
57.             rb.AddForce(new Vector2(0, Jumpforce), ForceMode2D.Impulse);
58.         }
59.  
60.         //checks for the key 'Q' to be pressed and that there is enough fuel in the jetpack
61.         if (Input.GetKey(KeyCode.Q) && canUseJetpack == true)
62.         {
63.             //ads force from below the player thus making the player fly using its jetpack
64.             rb.AddForce(Vector2.up * JetPackForce);
65.             //decreases the fuel in the jetpack
66.             JetpackBar.instance.UseFuel(0.1f);
67.             //makes the player run the using jetpack animation
68.             animator.SetBool("UsingJetpack", true);
69.         }
70.         else
71.         {
72.             //if the player isn't using the jetpack, switch to the idle animation or the run animation depending if the player is moving or not
73.             animator.SetBool("UsingJetpack", false);
74.         }
75.  
76.         //checks if the player health is less than 0
77.         if (HealthBar.instance.currentHealth <= 0)
78.         {
79.             //if so, restart the game
80.             SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
81.         }
82.     }
83.  
84.     //checks if someting collided with the player
85.     private void OnCollisionEnter2D(Collision2D collision)
86.     {
87.         //if the thing collided with the player has a tag of 'Enemy'
88.         if (collision.gameObject.CompareTag("Enemy"))
89.         {
90.             //then, make the player take damage
91.             HealthBar.instance.takeDamage(25);
92.         }
93.     }
94.  
95.     //flip the player
96.     void flip()
97.     {
98.         isFacingRight = !isFacingRight;
99.         transform.Rotate(0f, 180f, 0f);
100.     }
101. }

and here is a video showing you what i mean by stuttering :

2021 05 15 16 16 38 - YouTube

 

can you please give me a hint on what i should replace my code with?

 

thanks so much