Wow minecraft is unplayable with this new experimental frame rate option it's so choppy even when set to 60FPS. This experimental frame rate option is an official setting I don't have experimental features enabled in my world.

 How to produce:

1) load up any world 

2) pause and go to the video settings

3) go all the way down to where it says Max Framerate (Experimental) and set the frame rate from any number from 10 - unlimited. 

(Example mine is set to 60FPS to match the refresh rate of my tv)

4) resume game and walk around, rotate camera around, place blocks, break blocks, attack mobs whatever and you'll see how much lag there is now than the previous update.