Now I know only that constant, fully locked FPS is good. But how much is enough? I can see a huge difference between 60 and 125 on my 60Hz monitor. Also there are difference between 125 and 300, in CSS for example, I've binded fps_max with different values to test and found out that 300 feels smoother than 125(and also screen tearing are almost not noticeable with 300fps without vsync), despite of my monitor has 60Hz refresh rate.
So I'm pretty confused with that. Which FPS to set?