替代显示来自JSON的数据

I'am developing a cross platform angularjs mobile application. in it there is a requirement to display some data. Now i have stored that data as json file. This json file contains nearly 2500 products. The below code works just fine. Now the problem is that when i deploy the following code in mobile it literally takes 12 - 14 seconds to iterate through json and display data.I'am developing a cross platform angularjs mobi