I know what you mean, I got a similar experience with No One Lives Forever, one of my favorites games ever.
When I tried playing first at max settings, it would freeze up. Then I had to go lower settings in order to play it. Still very fun. I hten got I better PC and replayed the way it was suposed to be played. Awesome! Then I got the Playstation 2 port for a friend.....it looked like snes and it was impossible to play, for me at least
But....graphics have advanced so much already.....I believe developers should worry about gameplay more rather than graphics power.
BTW, if you havent played No One Lives Forever, go get it, it will surprise you as that game is incredibly fun and looks great too even tough its 10 years old, better than most current FPS