I have custom component "CaseAsset" on case object which displays Asset values. After updating Asset object I want to refresh that component automatically to show updated values. I used below code to achieve this but feels like its not efficient way. I checked online and read about aura dependency but not sure which resource to use. Please let me know if there is any other way. Thanks in advance.
 

<aura:component implements="flexipage:availableForRecordHome,force:appHostable,flexipage:availableForAllPageTypes,force:hasRecordId,force:hasSObjectName" controller="CaseAssetController" access="global" >
<aura:attribute name="caseAsset" type="Case" />
<aura:attribute name="recordId" type="Id" />
<aura:handler name="init" action="{!c.fetchCs}" value="{!this}" />
<aura:dependency resource="markup://force:recordSave" type="EVENT" />
<aura:handler event="force:refreshView" action="{!c.fetchCs}" />  
  <lightning:card title="Asset With Support">
   <p class="slds-p-horizontal_small">
      <ui:outputText class="slds-text-body_regular" value="{!v.caseAsset.Asset.Name}"/><br />
      <ui:outputText class="slds-text-body_regular" value="{!v.caseAsset.Asset.Price}"/><br />
      <ui:outputText class="slds-text-body_regular" value="{!v.caseAsset.Asset.Status}"/><br />
      <ui:outputText class="slds-text-body_regular" value="{!v.caseAsset.Asset.SerialNumber}"/><br />
   </p>
</lightning:card>
</aura:component>

Controller:

({

fetchCs : function(component,event,helper){
    helper.calltoApex(component,event);

    window.setInterval(
        $A.getCallback(function() { 
            helper.calltoApex(omponent,event);
        }), 5000
    );
},

Helper:

({
calltoApex : function(component, event) {
    var action = component.get("c.getCaseList");
    var caseId = component.get("v.recordId");

    action.setParams({
     caseId: caseId
     });

    action.setCallback(this, function(a) {
    if (a.getState() === "SUCCESS") {
        component.set("v.caseAsset", a.getReturnValue());
    } else if (a.getState() === "ERROR") {
        $A.log("Errors", a.getError());
    }
});
    $A.enqueueAction(action);


}
})