Sort experience fragments using Sort icon without lazyloading in listview



I Customized the  listview of experience fragment console. Added one new column. New column is of type Date. Want to implement sorting based on field values of newly added column using sort icon beside column header. so added sortType and Sortable properties. Sorting is not working  first if the list contains morethan 40 elements  for the newly added column. It works after I scroll down the complete list once. But working fine for existing columns irrespective of number of items in the list.

How to make my new column work like existing columns?

Thanks in advance..