I got a solution for bigger excel more that 2000 cells. I have created a category then instead of adding 1 excel of 6000 cells I split it in 3 so 2000cells each then in front end I merge then to show 1 table of all. The loading is quicker and not freezing. Hope in your next update instead of choosing single table you give option to select category and merge all table together. I have also add the export for public when download they download the merge table....
Hope you used my solution for next droptable update