[TIMOB-15095] iOS: ScrollableView's manageCache causing lag halfway through page

    var color = 'red';
    
    function createView() {
    	color = (color === 'red') ? 'green' : 'red';
    
    	var v = Ti.UI.createView({
    		backgroundColor : color,
    		layout : 'vertical'
    	});
    
    	var colorAlt = 'blue';
    
    	for (var i = 0; i < 30; i++) {
    		colorAlt = (colorAlt === 'blue') ? color : 'blue';
    		v.add(Ti.UI.createImageView({
    			//backgroundColor : colorAlt,
    			height : 10,
    			image : 'https://www.google.nl/images/srpr/logo11w.png',
    			top:0
    		}));
    		
    		v.add(Ti.UI.createLabel({
    			height : 10,
    			text: 'Me and Timan Rebel tracked down the problem and manageCache seems to be the problem. When the nextPage changes half-way, manageCache renders all views within range, instead of just the new view getting into the range. It must be possible to make this more efficient. But even if its just 1 or 2 views that need to be rendered, if they are heavy, the lag still occurs.',
    			top:0,
    			font: {
    				fontSize: 7
    			}
    		}));
    	}
    
    	return v;
    }
    
    var v = [];
    
    for (var i = 0; i < 10; i++) {
    	v.push(createView());
    }
    
    var w = Ti.UI.createWindow({
    	backgroundColor : 'white',
    	views : v
    });
    var s = Ti.UI.createScrollableView({
    	views : v
    });
    
    w.add(s);
    w.open();