How does the original Splinter Cell run on PC?

I'm thinking of buying the original game on steam as it was the only title I didn't grab before the older games were pulled from the Xbox store. I'm pretty new to gaming on a PC and heard that the original game requires some patching to fix the shadows or something when running on modern gear. What, if anything, will I need to do to get the game to run as intended? Or do you find that everything works fine right off rip?