As I've posted before, Minecraft runs fine for me except sometimes when I travel too far in one sitting. Apparently loading too many scenes uses up all my memory and I start to get lag. In order to keep playing I have to save and quit the game and re-start.
After I discovered the teleport cheat to get back to my base, I have been using it to transport resources from far-away mines to my home base. When I do this, I have to load up my inventory, quit the game, start the game and immediately teleport. If I do that, I have no lag at my destination. I can't teleport back without first saving and quitting the game. If I try, I first get lag, then the game crashes. The game info I get when I hit F3 shows that 100 % of my memory is used up.
I can live with the workarounds,, but I think the lag shouldn't happen at all. My system:
OS: Windows 10 (10.0.0) 64bit
CPU: Intel(R) Core(TM) i7-3770 CPU @ 3.40GHz (8) System RAM: 16324
GPU: NVIDIA GeForce GTX 1060 6GB GPU RAM: 6081