各位帮我看下，怎么提高读本地文件的速度

locals.xml
<?xml version="1.0" encoding="UTF-8"?>
<locals>  
     <local>
          <localId>1</localId>
          <localName>北京市</localName>
          <sceneryPath>/scennery/beijing.xml</sceneryPath>
     </local> 
     <local>
          <localId>2</localId>
          <localName>上海市</localName>
           <sceneryPath>/scennery/shanghai.xml</sceneryPath>
     </local> 
     <local>
          <localId>3</localId>
          <localName>广东省</localName>
         <sceneryPath>/scennery/guangdong.xml</sceneryPath>
     </local> 
 </locals>beijing.xml
<?xml version="1.0" encoding="UTF-8"?>
<scenerys>
      <!--北京 -->
       <scenery>
           <localId>1</localId>
           <sceneryId>1</sceneryId>
           <sceneryName>王府井</sceneryName>
      </scenery>
      <scenery>
           <sceneryId>1</sceneryId>
           <sceneryId>2</sceneryId>
           <sceneryName>故宫</sceneryName>
      </scenery>
      <scenery>
          <sceneryId>3</sceneryId>
          <sceneryName>颐和园</sceneryName>
      </scenery>
      <scenery>
          <localId>1</localId>
          <sceneryId>4</sceneryId>
          <sceneryName>长城</sceneryName>
     </scenery>
      </scenerys>
在本地有这两个xml文件，点击北京，去解析beijing.xml，可是速度很慢，请问有更好点的办法吗，还是不应该这样写