Padding top with collection-repeat cause item appearance delay

For some reason I need to put padding top to my collection-repeat list, but when I scroll up, the top item appearance has a delay, so I end up with a blank row for small time, any workaround? Thanks

  <ion-scroll style="height:100%;padding-top:221px">
     <div class="list">
	<a class="item my-item store-colleciton-item">