Video Switching clip for videoPlayer in Unity 5.6.0f3 causes Lag and makes CPU usage 100%

Making project with SteamVR and unity 5.6.0f3. making a simple switching video mechanism and everytime the videoclip switches within the videoplayer and it plays the new clip. it causes a CPU usage spike which shows that the problem is with VideoPlayer.set_clip()

and my steamVR switches from the application to the compositor screen for a split second.
My settings for the videoplayer is

I have also tried stopping the clip before switching and playing again.
This is my code

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5. using UnityEngine.Video;
6. [RequireComponent(typeof(AudioSource))]
7. public class PlayVideo : MonoBehaviour
8. {
9.    
10.      public VideoClip clip;
11.      private SerialUISummoner canvas;
12.      VideoPlayer video;
13.      int vsyncprevious;
14.      private bool playing = false;
15.      // Use this for initialization
16.      void Start()
17.      {
18.          video = GetComponent<VideoPlayer>();
19.          video.clip = clip;
20.          video.SetTargetAudioSource(0, GetComponent<AudioSource>());
21.          canvas = Object.FindObjectOfType<SerialUISummoner>();
22.      }
23.      // Update is called once per frame
24.      void Update()
25.      {
26.          if (canvas != null)
27.          {
28.              if (canvas.Showing && !playing)
29.              {
30.                  playing = true;
31.                  print("START");
32.                  PlayVid();
33.              }
34.              if (!canvas.Showing && playing)
35.              {
36.                  playing = false;
37.                  StopVid();
38.              }
39.          }
40.      }
41.      public void PlayVid()
42.      {
43.          video.Play();
44.      }
45.      public void StopVid()
46.      {
47.          video.Stop();
48.      }
49.      public void Change()
50.      {
51.          if (video != null)
52.          {
53.              playing = false;
54.              video.clip = clip;
55.                  playing = true;
56.                  PlayVid();
57.          }
58.      }
59. }

 

I have same problem in 5.6.1, any solution?

 

same problem too... i want to fix this problem as soon as possible..