Lag/jittery loading of chunks dropping framerate to under 50fps with GTX1080

Consistent poor performance in framerate when game has to load and/or create new chunks - framerates drop off a cliff and unless you stand completely still for a few minutes or reload game it continues to decline until you cannot move. Not sure what other info to provide except that it is very consistent and easily duplicated. Spawn a new world and run around a few minutes after 5-10 minutes game begins its slow descent into fps oblivion - 11 times in a row on newly launched worlds - if you dont move around - dont explore - no problem - but soon after you start exploring game eventually grinds to a halt.