Когда я подхожу к блоку и зажимая W + Space получается более низкий прыжок, нежели когда просто нажимаю Space

 
using UnityEngine;
public class Player : MonoBehaviour
{
  [SerializeField] private float moveSpeed = 1f;
  [SerializeField] private float jumpForce = 4.3f; 
  private Rigidbody rb;
  private bool isGrounded;
  private InputSystem_Actions input;
  private Vector3 movement;
  private void OnEnable()
  {
    input.Enable();
  }
  private void Awake()
  {
    input = new InputSystem_Actions();
    rb = GetComponent<Rigidbody>();
  }
  private void Update()
  {
    PlayerInput();
    if (input.Player.Jump.triggered && isGrounded) 
    {
      Jump();
    }
  }
  private void FixedUpdate()
  {
    Move();
  }
  private void PlayerInput()
  {
    Vector2 inputVector = input.Player.Move.ReadValue<Vector2>();
    movement = new Vector3(inputVector.x, 0, inputVector.y); 
  }
  private void Move()
  {
    rb.MovePosition(rb.position + movement * (moveSpeed * Time.fixedDeltaTime));
  }
  private void Jump()
  {
    rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse); 
    isGrounded = false;
  }
  private void OnCollisionEnter(Collision other)
  {
    if (other.gameObject.CompareTag("Ground"))
    {
      isGrounded = true;
    }
  }
}