Movement speed is changing.,Why Some GameObject move slower than other

Hi guys, I'm trying to make a drawing card script. But, some card move slower than others. Do you guys know why??

 using System;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.UI;
 public class GamePlay : MonoBehaviour
 {
 
     [SerializeField] Button dealPlayer1;
     [SerializeField] Button dealPlayer2;
 
     [SerializeField] GameObject cardSpawner;
     [SerializeField] GameObject cardPrefab;
     [SerializeField] List<Transform> player1Deck;
     [SerializeField] List<Transform> player2Deck;
     private float dealSpeed = 7000f;
     private float waitFrame = 0.01f;
     // Start is called before the first frame update
     private int[] cardCount = { 0, 0, 0, 0, 0 };
     void Start()
     {
         dealPlayer1.onClick.AddListener(() => { Deal(0); });
         dealPlayer2.onClick.AddListener(() => { Deal(1); });
     }
 
     private void Deal(int player)
     {
         if (cardCount[player] > 4)
         {
             return;
         }
         List<Transform> t = new List<Transform>();
         if (player == 1)
         {
             t = player2Deck;
         }
         else if (player == 0)
         {
             t = player1Deck;
         }
         //Move2(player, t);
         StartCoroutine(Move(player, t));
     }
 
     IEnumerator Move(int player, List<Transform> t)
     {
         var targetPosition = t[cardCount[player]++].transform.position;
         var card = Instantiate(cardPrefab, cardSpawner.transform.position, Quaternion.identity);
         card.transform.SetParent(cardSpawner.transform);
         var movementThisFrame = dealSpeed * Time.deltaTime;
         var waitThisFrame = waitFrame * Time.deltaTime;
         while (card.transform.position != targetPosition)
         {
             card.transform.position = Vector2.MoveTowards(card.transform.position, targetPosition, movementThisFrame);
             yield return new WaitForSeconds(waitThisFrame);
         } 
     }
 
     // Update is called once per frame
     void Update()
     {
     }
 }