Much to my chagrin, modern games don't focus on high frame rates. 30 fps is the new standard, 60 fps if you're lucky, most PC ports of console games are locked to 30/60hz and require physics-borking hacks to lift the limit, and even the games that do support arbitrary framerates tend to have a target FPS designed into them, such that even a monster PC with all of the graphics settings turned down will frequently choke.