the loading times on games that where made for amiga/atari st are not that much longer than modern cd/dvd/bd based consoles. usually its just the initial load that's a little bit longer.
Its the pc ports, specifically adventure games that's unbearable. Id say most of these games are unplayable from floppy. I never bothered anyways.
But games like turrican, lionheart, chaos engine have no problem.