Second page.evaluate is slow

gistfile1.js

var phantom = require('phantom');
var debug = require('debug')('phantom');

var p;

var click = function( selector, callback ){
	var self = this;

	p.evaluate( function( selector ) {
		var element = document.querySelector(selector);
		var event = document.createEvent('MouseEvent');
		event.initEvent('click', true, true);
		element.dispatchEvent(event);
	}, callback, selector );
};

var wait = function( time, callback ){
	setTimeout( callback, time );
};

var type = function( selector, text, callback ){
	debug('starting evaluate');
	p.evaluate( function( selector ){
	   document.querySelector( selector ).focus();
	   return true;
	}, function(){
		debug('back from evaluate')
	    for (var i = 0, len = text.length; i < len; i++){
	    	debug('sending letter ' + text[i]);
	      	p.sendEvent( 'keypress', text[i], null, null, 0 );
	      	debug('done with letter ' + text[i]);
	    }
	    callback();
  }, selector);
}

phantom.create(function (ph) {
	ph.createPage(function (page) {
		p = page;
		page.open('https://github.com', function (status) {
			console.log("opened github? ", status);
			click('a[href="/login"]', function(){
				wait( 2000, function(){
					type( 'input[name=login]', 'myusername', function(){
						type( 'input[name=password]', 'mypassword', function(){
							debug('rendering screenshot');
							page.render('out.png');
							debug('done rendering');
							ph.exit();
						});
					});
				});
			});      
		});
	});
});