slowScrollable.js

var win = Ti.UI.createWindow({
    backgroundColor: 'white'
});

var pages = [];

// Helper to generate a sample form
function buildPage() {
	var wrapper = Ti.UI.createView({
		layout: "vertical"
	});
	
	for(var i = 0; i < 25; i++) {
		var row = Ti.UI.createView({ 
			layout: "horizontal",
			height: 30,
			width: "100%",
			top: 10,
			bottom: 10 
		});
		var key = Ti.UI.createLabel({
			text: "Key " + i,
			width: 100,
			height: 30,
			left: 10
		});
		var field = Ti.UI.createTextField({
			top: 10, 
			left: 10,
			width: 250, 
			height: 30,
			backgroundColor: "#eee"
		});
		
		row.add(key);
		row.add(field);
		wrapper.add(row);
	}
	
	return wrapper;
}

// Build out the pages
for(var k = 0; k < 25; k++) {
	var wrapper = Ti.UI.createView({
		layout: "vertical",
		width: Ti.UI.FILL,
		height: Ti.UI.FILL
	});
	
	wrapper.add( buildPage() );
	
	pages.push(wrapper);
}

// ScrollableView wrapper
var scrollable = Ti.UI.createScrollableView({
	views: pages,
	width: Ti.UI.FILL,
	height: Ti.UI.FILL,
	cacheSize: 5
});

win.add(scrollable);
win.open();

Stutters in the middle of a page.