Nowadays I have a NAS that stores both the raw media and installation scripts for those games, and I have wine/dosbox/mame/mess startup scripts for many of them. Can't say that my inner child is disappointed about that, but building and curating that system took a lot more effort than I'd like to admit.
I don't buy games that require online activation, because I can't store and play them the same way. My inner child is very disappointed about that.
None of the figures shown in the article have any relevance if one has a slight knowledge of their operating system and are not running on decades old technology.
Even your example of 2 whole seconds seems wayyy too slow to me. I don't even tolerate that sort of delay when working on my 10+ year old commodity hardware --- I've already tweaked my tools to be totally instantaneous so I can continue typing as soon as I release the short-cut key.