title: How to display local video thumbnails with glide WITHOUT slowing down the listview?
body: <p>I'm trying to display local video thumbnail in this way, it did show the thumbnail in the list. However the list became extremely hard to scroll. 
  Is there a better way to solve the problem ?
  <a href="https://futurestud.io/tutorials/glide-displaying-gifs-and-videos" rel="nofollow noreferrer">https://futurestud.io/tutorials/glide-displaying-gifs-and-videos</a>    </p>
  
  <pre><code>    VideoItem current = (VideoItem) getItem(position);
      mHolder.mTvName.setText(current.getName());
      mHolder.mTvDuration.setText( Utils.convertDuration(current.getDuration()));
      mHolder.mTvSize.setText(formatFileSize(mContext, current.getSize()));
  
  
      Glide.with(mContext)
              .load(Uri.fromFile(new File(current.getPath())))
              .transform(new GlideRoundTransform(mContext, 12))
              .into(mHolder.mIvIcon);
  
      return convertView;
  </code></pre>