Playing video from Streaming Assets folder is choppy (android)

I am trying to play a video from the streaming assets folder on android. I can get it to play but it is very choppy
I am trying to get the video and audio separate so I can swap them out(for multilanguage support) It works well but the video is choppy and the audio becomes desynced from the video.

Is there a method for preloading the video besided checking if it's prepared?
I have tried to wait for upwards of 30sec after it's prepared to let it "Load" but still pretty choppy

 public void StartVid() 
     {
         string url = "file://" + Application.streamingAssetsPath + "/" + "videoplayback.mp4";
 
 #if !UNITY_EDITOR && UNITY_ANDROID
             url = Application.streamingAssetsPath + "/" + "videoplayback.mp4";
 #endif
 
         //We want to play from url
         videoPlayer.source = VideoSource.Url;
         videoPlayer.url = url;
 
         StartCoroutine(prepareVid(Path.Combine(Application.streamingAssetsPath, "audio.wav")));
     }

         private IEnumerator prepareVid(string file) 
         {
             videoPlayer.Prepare();
             while (!videoPlayer.isPrepared)
             {
                 Debug.Log("Preparing");
                 yield return null;
             }
     
             UnityWebRequest request = UnityWebRequestMultimedia.GetAudioClip(file, AudioType.WAV);
             yield return request.SendWebRequest();
     
             audioSource.clip = DownloadHandlerAudioClip.GetContent(request);
     
             Debug.Log("Prepared");
             //yield return new WaitForSeconds(30);
             videoPlayer.Play();
             videoPlayer.started += (trash) => { audioSource.Play(); };
     
             request.Dispose();
         }

Thank you