how to speed up data insertion in multiple table in sql

protected void btnSubmit_Click(object sender, EventArgs e)    

   {        

   try        

   {             

    Ticket tk = new Ticket();  

    tk.Sector_Id = SafeConvert.ToInt32(ddlSelectSector.SelectedValue);

    tk.Address = txtaddress.Text;

    tk.Book_ComputerNo = SafeConvert.ToInt64(txtcomputerno.Text);

    tk.Document_Id = SafeConvert.ToByte(ddldocument.SelectedValue); 

    tk.DueDate = SafeConvert.ToDateTime(txtDuedate.Text);

    tk.Employee_Id = ddlRollNo.SelectedValue;

    tk.OffenceDate = SafeConvert.ToDateTime(txtoffencedate.Text); 

    tk.RegistrationNo = txtRegistration.Text;

    tk.T_Number = SafeConvert.ToInt64(txttno.Text); 

    tk.TicketNo = SafeConvert.ToByte(txtTicketNo.Text);

    tk.Vehicle_Impound_Id = SafeConvert.ToByte(ddlImpoundVehicle.SelectedValue); 

   tk.Status = false; 

    tk.IsJMC = false;

    tk.IsPaid = false; 

    tk.Year = SafeConvert.ToByte(DateTime.Now.ToString("yy"));

    tk.TotalFine = 2000; 

    tk.OffenderName = txtoffenderno.Text;  

   _service.InsertTicket(tk); 

   var lastrecord = _service.GetAllTicket().LastOrDefault();

    Int64 tkid = lastrecord.ID; 

    foreach (ListItem listItem in Chkboxlst.Items)

    { 

      if (listItem.Selected)  

       {

        TicketCrime tkcrime = new TicketCrime();

        tkcrime.Ticket_Id = tkid; 

       var chkcrimeid = listItem.Value;

       int chkcrime = SafeConvert.ToInt16(chkcrimeid);

       tkcrime.OtherPunishment_Id = chkcrime;

        tkcrime.Status = true; 

         _service.InsertTicketCrime(tkcrime); 

                  } 

              } 

              if (ViewState["CurrentTable"] != null) 

              { 

                    DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];

                   DataRow drCurrentRow = null;   

                if (dtCurrentTable.Rows.Count > 0) 

                  { 

                      drCurrentRow = dtCurrentTable.NewRow(); 

                      drCurrentRow["RowNumber"] = dtCurrentTable.Rows.Count + 1;  

                       //add new row to DataTable

                       dtCurrentTable.Rows.Add(drCurrentRow); 

                      //Store the current data to ViewState for future reference 

                       ViewState["CurrentTable"] = dtCurrentTable; 

                        for (int i = 0; i < dtCurrentTable.Rows.Count - 1; i++) 

                      {  

                           //extract the TextBox values

                            var box1 = ((TextBox)Gridview1.Rows[i].Cells[1].FindControl("txtCode")).Text; 

                          var box2 = ((TextBox)Gridview1.Rows[i].Cells[2].FindControl("txtFine")).Text; 

                          int box1value = SafeConvert.ToInt16(box1);  

                         int box2value = SafeConvert.ToInt16(box2); 

                            TicketDetails tkdetail = new TicketDetails(); 

                         // var chkradio = rblQualification.SelectedValue; 

                          //byte chkRadio = SafeConvert.ToByte(chkradio); 

                          var vehiclecategory = _service.GetAllVehicleCategory().Where(x => x.ID == SafeConvert.ToByte(rblQualification.SelectedValue)).FirstOrDefault();

                           var vehicletype = vehiclecategory.VehicleType_Id;

                           var vehiclepnalty = _service.GetAllVehiclePenaltiesFee().Where(x => x.VehicleTypeID == vehicletype).FirstOrDefault();                                 var fee = _service.GetAllVehiclePenaltiesFee().Where(x => x.VehiclePenaltyTypeID == box1value && x.VehicleTypeID == vehicletype).FirstOrDefault();

                           tkdetail.Ticket_Id = tkid;

                           tkdetail.VehicleType_Id = vehicletype;

                           tkdetail.VehiclePenaltyType_Id = vehiclepnalty.VehiclePenaltyTypeID; 

                          tkdetail.VehiclePenaltiesFee_Id = fee.ID;

                           tkdetail.Status = true;

                           tkdetail.VehicleCategory_Id = vehiclecategory.ID;

                           _service.InsertTicketDetails(tkdetail);

                           _queryStatus = tkdetail.ID > 0;

                       }   

                }          

     }      

     }