How to Load Images Faster in Monodroid from web?

.cs file:

  StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().PermitAll().Build();
            StrictMode.SetThreadPolicy(policy);
ImageView bmImage = FindViewById<ImageView>(Resource.Id.MyImageView);
            URL url = new URL("http://www.fareast.com.sg/~/media/46521A05EEC4464CA457792591248373.ashx?20130715T1642469900");
            Bitmap bmp = BitmapFactory.DecodeStream(url.OpenConnection().InputStream);
            bmImage.SetImageBitmap(bmp);

.Mainfest File:
 <uses-permission android:name="android.permission.INTERNET" />

.axml File:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <ImageView
        android:id="@+id/MyImageView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

</LinearLayout>