Make text follow cursow without any delays in Unity 4.6

I have Text attached to my Canvas and custom cursor. When i'm trying to make text follow cursor like this, text has a little delay on the cursor following.

 //ammo is a Text object
 ammo.rectTransform.position = Input.mousePosition;
 

When i'm moving cursor, text is not tough fixed with cursor, it need some time to get to the new cursor position. Is there are any methods to make it move faster?