         results = Artus.Repo.all(final2) |> Artus.Repo.preload(:reviews)
         
         # Calculate query time
-        m2 = System.os_time() |> System.convert_time_unit(:native, :millisecond)
+        m2 = System.system_time(:millisecond)
         query_time = m2 - m1
         
         {:reply, {:ok, query_time, results}, state}

      nil ->
        {:reply, {:err, :notfound}, state}
      x ->
        m1 = System.os_time() |> System.convert_time_unit(:native, :millisecond)

        # Fetch query data
        query_data = state[id]

      nil ->
        {:reply, {:err, :notfound}, state}
      x ->
        m1 = System.system_time(:millisecond)

        # Fetch query data
        query_data = state[id]
