Optimize access to linked containers

On the start page we have a container with page links. In the 
corresponding box we are trying to display fields of the container, where 
the linked page originally comes from.

We get the original container like this:

  public static JahiaContainer getSourceContainer(int linkedPageID,
    ParamBean jParams) throws JahiaException
  {
    ContentPage cPage = ContentPage.getPage(linkedPageID, false);
    ContentPageField cPageField = 
(ContentPageField)cPage.getParent(jParams
      .getUser(), jParams.getEntryLoadRequest(), ParamBean.NORMAL);
    if (cPageField == null)
    {
      // try to get the active
      EntryLoadRequest lRequest = new EntryLoadRequest(
        EntryLoadRequest.ACTIVE_WORKFLOW_STATE, 0, jParams
          .getEntryLoadRequest().getLocales());
      cPageField = (ContentPageField)cPage.getParent(jParams.getUser(),
        lRequest, ParamBean.NORMAL);
    }

    if (cPageField != null)
    {
      ContentContainer cContainer = 
(ContentContainer)cPageField.getParent(
        jParams.getUser(), jParams.getEntryLoadRequest(), 
ParamBean.NORMAL);
      sourceContainer = cContainer.getJahiaContainer(jParams, jParams
        .getEntryLoadRequest());
    }

    return (sourceContainer);
}

Is there a way to optimize the following:

1.) cPage.getParent always results in a DB-call and does not use any 
caches
2.) cContainer.getJahiaContainer internally calls 
JahiaContainersBaseService.loadContainer(int, int, ParamBean, 
EntryLoadRequest), which again calls 
        return loadContainer(ctnid, loadFlag, jParams, loadVersion,
                             new Hashtable(), new Hashtable(), new 
Hashtable());
So the last three parameters passing caches are always empty caches. If I 
am trying to load the container twice it does not make use of these 
caches.
3.) The source container has 39 fields, but I am interested only in 3 
fields, which I want to display. When accessing the first field all other 
fields are loaded and checked for access rights. Is there an elegant way 
to really only read those 3 fields?

Greetings,
Benjamin