在引入js之后，怎么才能渲染快点

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta content='{PE.Field id="cone" fieldname="Title" /}' name="Description" />
    <meta content='{PE.Field id="cone" fieldname="Keyword" /}' name="Keywords" />
    <title>{PE.Field id="cone" fieldname="Title" /}-{PE.SiteConfig.SiteTitle/}</title>
<link rel="stylesheet" type="text/css" href="sheet.css" />
<link href="/Template/jsxy/css/css.css" rel="stylesheet" type="text/css" />
    {PE.Label id="公共脚本" /}
    <script language="javascript" type="text/javascript" src="{PE.SiteConfig.ApplicationPath/}js/jquery.galleria.js"></script>
   < <script type="text/javascript">
        Galleria.loadTheme('{PE.SiteConfig.ApplicationPath/}js/jquery.galleria.classic.js');
    </script>
</head>
 <script type="text/javascript">
        Galleria.loadTheme('{PE.SiteConfig.ApplicationPath/}js/jquery.galleria.classic.js');
    </script>
 <script type="text/javascript">
        Galleria.loadTheme('{PE.SiteConfig.ApplicationPath/}js/jquery.galleria.classic.js');
    </script>
这句话 在一定程度上阻止了样式的加载 
渲染很慢