How to get large amount of data in datatable in ASP.NET MVC

public ActionResult GetData()
     {
         string Constr = System.Configuration.ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
         var source = new List<mng_industrymodel>();
         using (OdbcConnection conn = new OdbcConnection(Constr))
         {
             using (OdbcCommand cmd = new OdbcCommand("call pegasus_industry_select"))
             {
                 cmd.Connection = conn;
                 conn.Open();
                 cmd.CommandType = CommandType.StoredProcedure;
                 var dr = cmd.ExecuteReader();
                 while (dr.Read())
                 {
                     var orderlists = new mng_industrymodel
                     {
                         industry_Id = dr[0].ToString(),
                         industry_name = dr[1].ToString(),
                         industry_status = dr[2].ToString()
                     };
                     source.Add(orderlists);
                 }
                 return Json(new { data = source }, JsonRequestBehavior.AllowGet);
             }
         }

     }

$(document).ready(function () {
    $('#tbltable').DataTable({
        "ajax": {
            "url": "/Management/GetData",
            "type": "GET",
            "datatype": "json"
        },
        "columns": [
            { "data": "industry_Id" },
            { "data": "industry_name" },
            { "data": "industry_status" },
            {
                "data": "industry_Id", "render": function (data) {

                    return "<a href='/Management/Edit/" + data + "' class='badge badge-success mb-1'><i class='far fa-edit p-1'></i> Edit</a><a href='' class='badge badge-danger' style='margin-left:5px' onclick=Delete('" + data + "')><i class='far fa-trash-alt p-1'></i> Delete</a>";
                },
                "orderable": false,
                "searchable": false,
                "width": "150px"

            }

        ]
    });
});