Hello Everyone,
I have html table it's have 3000+ Rows. I don't want pagination. When i convert simple Html Table to Jquery Datatable so it's rendering very slow. page look like a unresponsive. after 1 to 1.5 minute every thing normal. as expected. how to fix this issue please help me Below is my code.

$('#testtable').DataTable({
            "searching": false,
            "info": false,
            "paging": false,
            select: true,
            "processing": true,
            dom: 'Blfrtip',
            "order": [[1, "asc"]],
            bInfo: false,
            buttons: [
                 {
                     extend: 'excelHtml5',
                     exportOptions: {
                         columns: "thead th:not(.noExport)",
                         rows: function (indx, rowData, domElement) {
                             return $(domElement).css("display") != "none";
                         }
                     }
                 },
                 {
                     extend: 'csvHtml5',
                     exportOptions: {
                         columns: "thead th:not(.noExport)",
                         rows: function (indx, rowData, domElement) {
                             return $(domElement).css("display") != "none";
                         }
                     }
                 },
                 {
                     extend: 'pdfHtml5',
                     orientation: 'landscape',
                     exportOptions: {
                         columns: "thead th:not(.noExport)",
                         rows: function (indx, rowData, domElement) {
                             return $(domElement).css("display") != "none";
                         }
                     }
                 },
            ],
            columnDefs: [{
                orderable: false,
                className: 'select-checkbox',
                targets: 0
            }],
            select: {
                style: 'multi+shift',
                selector: 'td:parent'
            },
            "columns": [{
                "targets": [0],
                "sorting": false
            }, {
                "targets": [1],
            }, {
                "targets": [2],
            }, {
                "targets": [3],
            }, {
                "targets": [4],
            }, {
                "targets": [5],
            }, {
                "targets": [6],
            }, {
                "targets": [7],
            }],
            "lengthChange": false,
        });