AI Pathfinding script with Speed Adjustment

Hello, I am new to unity and have copied a Pathfinding script from this video: How to use Unity NavMesh Pathfinding! (Unity Tutorial) - YouTube

But the agent runs way too fast. How can I make the speed of the agent be the float speed. I appreciate any response, thanks in advance

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;

public class EnemyNavMesh : MonoBehaviour {

 public float speed;

 [SerializeField] private Transform movePositionTransform;

 private NavMeshAgent navMeshAgent;

  private void Awake(){
     navMeshAgent = GetComponent<NavMeshAgent>();

 private void Update (){
     navMeshAgent.destination = movePositionTransform.position;


float botSpeed = 10f;
navMeshAgent.speed = botSpeed;