menulatency.js

<script type="text/javascript">
//<![CDATA[
jQuery(document).ready(function() {
	for (i=0;i<1;i++) {
		setTimeout('addDot()',1000);
	}
});
function addDot() {
	jQuery(document).ready(function($) {
		jQuery('#<?php echo $this->id.'-item'; ?> .menu').wfMegaMenu({
			rowItems: <?php echo $instance['rowItems']; ?>,
			speed: <?php echo $instance['speed'] == '0' ? 0 : "'".$instance['speed']."'"; ?>,
			effect: '<?php echo $effect; ?>',
			subMenuWidth:200
		});
	});
}
//]]>
</script>

disable this latency by replacing the code with

<script type="text/javascript"> //id.'-item'; ?> .menu').wfMegaMenu({ rowItems: , speed: , effect: '', subMenuWidth:200 }); //]]> </script>