Indeed, that works perfectly... you've definitely less pixels (and details), but that's logically... 
 
If someone has some time to dig in deeper, maybe it would be possible to activate some "switch"-script by pressing the home or menu button for e.g. 2 seconds (which then activates/deactivates the refresh mode) 
=> but we can already use it sometimes (when you know you're going to scroll to much, and when there is some wifi-connection :-) )
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
	 |