That's what I'm thinking. OP might be some 180 mhz, 120 fps, whatever overclocking to get the most out of the game type of person. Which is fine, but when it holds you back from enjoying a large percent of all video games ever released, it's a little ridiculous.

ETA: in fact I just did a couple-hundred-hour playthrough a couple months ago and it looked fine. A little muddy cause it's like 11 years old now, but it still looks good imo. The stylization really helps to make it not look as dated. Also I used a shitload of power armor mods cause I wanted to be a collector of exotic armors. My favorite is probably the NCR PA based on the one from the show.