Nobody is making you install a SSD. The game is fine without it but the SSD helps with load times and not just for GT5, for all games. I don't know why you're jumping on GT5. Lol.
And regarding the 80s. Developers have a ton more to debug nowadays compared to back then. In the 80s, PC games came on 3 or more 1.44mb diskettes. That's not even big enough for soundtracks now. That's barely an mp3 file Lol.
And you calling the 80s games "perfect"??? Are you kidding me?? The internet was in it's infancy so consoles weren't even net-capable until the 90s, THAT'S why devs couldn't patch console games after release, not bcuz they thought their games were perfect. We had no other choice to accept them as they came. They were not "perfect". "Fun", but not perfect. Even the devs knew that and the evidence is on the PC platform. Developers released patches for PC games in the 80s so obviously devs were still working to improve gameplay post-release just as they do for all platforms today.
I loved the old 80s games growing up too (I even played the text RPGs, with no graphics) but get real. I understand you are frustrated but I'll take RDR and GT5 over the Space Quest series and Carmageddon anyday.
Enjoy your iPad