There's no way this is true. You simply aren't accurately remembering the actual experience of using that laptop 15 years ago. For starters, the laptop 15 years ago was using a spinning rust hard disk, so everything was much slower compared to today's lightning fast SSD. I remember when it used to take minutes to boot up a laptop and launch a few applications, and it took almost that long to resume from hibernation. Modern laptops are much, much faster.