Randomly, and quite frequently, Minecraft for Windows 10 encounters an issue with dropping a decent amount of frames, (Down to around 30 fps from a top 75 fps on my machine). I have tested this on various chunk render distances, and still have gotten the same effect.

The machine this occurs on has these specs:
Windows 10 October 2018 Update
Game installed on an M.2 Nvme SSD
AMD Ryzen 7 2700x
8GB DDR4 RAM
Nvidia GTX 1660 Ti (Previously had a 1050 Ti, and it occurred on that as well)