DS: Disable slowBlur, works fine on new drivers.

overlay/frameworks/base/core/res/res/values/config.xml

@@ -28,7 +28,7 @@
     <!-- Flag indicating whether the surface flinger is inefficient
          at performing a blur.  Used by parts of the UI to turn off
          the blur effect where it isn't worth the performance hit. -->
-    <bool name="config_sf_slowBlur">true</bool>
+    <bool name="config_sf_slowBlur">false</bool>
 
     <!-- The duration (in milliseconds) of a short animation. -->
     <integer name="config_shortAnimTime">100</integer>