Affects Version/s: Minecraft 1.9, Minecraft 1.9.1 Pre-Release 1, Minecraft 1.9.1 Pre-Release 2, Minecraft 1.9.1 Pre-Release 3
Fix Version/s: None
Environment:Java Version 8 Update 73
Windows 7 Ultimate
AMD FX-8320 Eight Core Procesor
nVidia GTX 760 Graphics Card
8 GB RAM 1600 MHz
When I aggro a large group of Pigmen the game ticks slow down severely (it takes several seconds for a hopper to output an item), but the framerate is not affected.
CPU cores are at 60% to 90% while running other programs like several tabs of Google Chrome and background programs.
It does this both in the Nether and the Overworld.