LCD's dont have a refresh rate.
A CRT refresh rate is the amount of times the cathode ray scans the screen, the bare minimum for the human eye to register movement is 60hz. However that causes eye strain so higher refresh rates are preferred.
LCD's response time is the time it takes for a crystal to switch from one end of the RGB spectrum to the other.
They're totally different things.
Remember the lower response LCD's can only display 6bits of color at once, so youre making a trade off in faster response vs washed out colors.
