Two critical performance problems when using rich:extendedDataTable:
-The scrollbar of rich:extendedDataTable does not work when showing more than 100 rows per page - it becomes frozen!
-The waiting time for loading for example 500 rows per page is very (!) slow in compare to a normal rich:dataTable or rich:scrollableDataTable.
-Another point is, it should be adjustable that changing the column-order per dragN drop is only pure client side. Otherwise it needs too long only for such a task to change the order.
Any performance-tips to get the scrollbar work are appreciated.
