Hopefully it will be fixed before the 1.14 release 🙂
I have to say that the 18w31a lag is not as frequent, but if it is stuck, it is still very serious and even crash.
1.12.2 world have a bit better than the original snapshot, but there are still a lot of unbearable lag spikes 😞
 1.13pre9 NOT FIX this problem
 1.13pre9 still has this problem
If your laptop has both Nvidia GeForce and Intel(R) HD Graphics, you can go to the device manager (win+r, input devmgmt.msc), and then find display adapter(? I'm not sure this translation, I'm using Chinese version), forbid the Nvidia GeForce.
And then you can enter the game, for me it does work.
I hope that will help you.
Unfortunately, this problem has not been fixed from 1.13 to the current 1.14 pre5. Next Tuesday, 1.14 will be officially released. Should we wait until 1.15 to fix this problem?