How to make lazy panel in ICEface 4.3?

Question

I have data ICEfaces 4.3 Datatable in which every row has one panel and its collapsed by default. Even it is collapsed its content view is getting rendered which making page slow. Here is sample code,

    <ace:dataTable  var="myVar" value="#{mybeanobj}"
            paginator="true"
            paginatorPosition="top"
            pageCount="5"
            rowIndexVar="row"
            rows="20" >
            <ace:column>
            <ace:panel id="details" toggleable="true"  styleClass="details-marker" collapsed="true">
                <f:facet name="header">
                        <h:outputText value="my header"/>
                </f:facet>
                <h:outputText value="myVar.v1"/>
                <h:outputText value="myVar.v2"/>
                <h:outputText value="myVar.v3"/>
                <h:outputText value="myVar.v4"/>
                <h:outputText value="myVar.v5"/>
                <h:outputText value="myVar.v6"/>
                <h:outputText value="myVar.v7"/>
                </ace:panel>
            </ace:column>
        </ace:dataTable> 

How I can make panel lazy so that content will be loaded only when its toggled rather than during page render ?