unity 播放视频问题?

比巴卜

在unity网页中载入视频,放到服务器上,访问播放特别缓慢,在本地加载特别迅速,请问各位有什么可能的原因影响到了.
播放视频的代码如下:

IEnumerator PlayMovie(string url)
{
movieWWW=new WWW(MainProcess.PathFactor()+url);//网络路径
MovieTexture movieTexture=movieWWW.movie;
while(!movieTexture.isReadyToPlay)
{
Debug.Log(movieWWW.progress);
GUIRoot.error=movieWWW.progress.ToString();
yield return 0;
}
m_movieTexture=movieTexture;//m_movieTexture为在ongui中显示的贴图
movieTexture.Play();
AudioClip audioClip=movieTexture.audioClip;
audio.clip=audioClip;
audio.Play();
isMoviePlay=true;
}