We had created a dynamic radgrid with auto-generated columns and binding it to a dynamic datatable at code behind. We also have horizontal scrollbar for moving the column. Radgrid behave normally when we have less number of column but when we have more than 50 columns it start showing lagging in UI and horizontal scrollbar move very slowly as well as whole grid rendering is slow on page load.
could you please help identifying the cause for this? please do let me know if more information is needed.