i think part of it is it's a nostalgic reminder of when this game was very high-end. even on our pentium 90 in 1995 the framerate would dip below 35 (the max) at times
i've never quite been able to untangle why (for lack of a better term) the technological impressiveness of a given game has contributed to my enjoyment
i'm rarely impresssed these days, but back then it was Very Cool when a game busted out some novel effect or hit a level of fidelity rarely seen on its hardware
and to play something on the then cutting edge felt... invigorating somehow. maybe it was just the novelty, which is gone now since most tech is Good Enough to render pretty scenes