title: Manually Loading Deferred slot/components in spartacus
body: <p>I ran into an issue, my lazy loaded PDP module having issue with deferred loadingof componnets
  I used <strong>deferLoading: DeferLoadingStrategy.INSTANT</strong> but didnt work.</p>
  <p>actually,I want to scroll down to a slot by clicking on button in top of the screen, like for review/rating componnets from top to bottom scroll.</p>
  <p>Can I load deferred slot/components using any service on button click ?</p>