Setting high Randomtickspeed values increases ping significantly

Steps to reproduce (Can be better seen in beta)

1. Increase randomtickspeed (Maximum: 4096)
2. If you are in the beta, look at "ServerTime". If you aren't, go around and do some basic stuff. Dropped items will keep teleporting up, mobs will move way slower...

What should happen: the game acts normal, with the exception of crops and entites growing faster

What actually happens: the ping increases significantly, making it almost impossible to play the game (See attached image: from 1,5ms to about 500ms)