Windows phone Windows phone:在列表视图中加载数据非常慢（Appcelerator）

我的windows phone应用程序有问题。 我尝试在listview中加载大约80个项目。当我在控制器中执行此操作，并在应用程序启动时创建控制器实例时，会收到一条超时消息

当我在应用程序启动后调用loadData方法时，它可以工作，但加载数据大约需要27秒（在设备上），在模拟器中大约需要4秒，这要好得多，但在我看来还是有点长

我不知道是什么原因造成了这次延误。非常感谢您的任何建议

这是在listview中加载数据的代码。（钛合金SDK 5.3.0.GA）

function loadData() {
var fruitSection = Ti.UI.createListSection({ headerTitle: 'Fruits'});
var fruitDataSet = [
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}},
    {properties: { title: 'test item'}}
];
fruitSection.setItems(fruitDataSet);
sections.push(fruitSection);
listView.sections = sections;
Ti.API.info('done');
}