The page is very slow when input fields are present inside vertilize directive. #15

The page becomes very slow and when trying to enter input fields, the characters entered show up very late. It happens only when there are many input text boxes present inside the vertilize directive.

As the watch function gets executed for each character entered inside text box, the page is becoming unresponsive.

This happens mainly on firefox and IE browsers and works well on google chrome.

Is it possible to support input fields ?