Yajra DataTables loading data time exceeded from 1 Minut PHP Fatal Error.

I have 15000 records in my users table. I want to use datatable i have followed the data table forum speed faq. But none of them is going to wok for me . Can you please suggest me to decrease the loads time for the effiency of the system .? I am using the datatable latest version 9.8.0. Below is my Client Side Code:

<script>
    $(function() {
        
        var GridView =  $('#users_table').DataTable({
            bprocessing: true,
            bserverSide: true,
            ajax: '{{ route('users.lists') }}',
            deferRender: true,
            columns: [
                { data: 'id', name: 'id' },
                { data: 'name', name: 'name' },
                { data: 'email', name: 'email' },
                { data: 'action', name: 'action'},
                
            ]
        });

        $('#users_table').show();
        GridView.columns.adjust().draw();
    });
    </script>

My Controller Code :

 public function usersLists()
    {
        $users = User::orderBy('id','desc')->get();


        return Datatables::of($users)
                                   ->addColumn('action',function(User $user){
                                     return  `<div class="btn-group btn-group-xs">
                                              <a data-toggle="tooltip" title="" class="btn btn-default" data-original-title="Off"><i class="fa fa-power-off"></i></a>
                                              <a data-toggle="tooltip" title="" class="btn btn-default" data-original-title="Edit"><i class="fa fa-edit"></i></a>
                                             `;
                                   })
                                   ->make(true);
    }