与ajax更好的性能[关闭]

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            <div class="grid--cell mb0 mt8">Closed <span title="2011-12-02 04:02:08Z" class="relativetime">8 years ago</span>.</div>
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I'm making very simple ajax requests like

 $.ajax({  
   type: "POST",  
   url: "atuamae.org/send.php",  
   data: dataString,  
   success: function() {  
    //display message back to user here  
    $('#message').val('');
   }  
 });  

and then this php sends it to the database, but this process is taking too long! what can i do to speed it up?

I have some $_SESSION variables inside the php could that be slowing it down?

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