WebCenter Portal 11.1.1.7 and Internet Explorer 8.0

Dear Team.

I'm having problems with slowness WebCenter portal in internet explorer 8.0. 

The version of my WebCenter is 11.1.1.7. In other browsers it works normally. 

When I change the IE Compatibility View its works normaliy.

Already added the following parameters in web.xml but it did not work:

   <context-param>

    <param-name> org.apache.myfaces.trinidad.Agent # OVERRIDE_IE_COMPATIBILITY_MODE </ param-name>

    <param-value> true </ param-value>

  </ context-param>

  <context-param>

     <param-name> oracle.adf.view.rich.HIDE_UNSUPPORTED_BROWSER_ALERTS </ param-name>

     <param-value> IECompatibilityModes </ param-value>

   </ context-param>

Anyone have any ideia?

Thanks!