The Console log continually spams "root.tick" or "root.tick.textures" is "taking too long".

Further looking in my debug graph shows large activity dedicated to root.tick.textures with and without entities(Test with 100+ total Zombies, Creepers, Skeletons, Spiders, Slimes, and Zombie Pigmen)

Deeper In:
Profiling of Minecraft (using JProfiler) shows that classes

• cl.class
• cs.class
• dh.class

are the most the intensive. Looking into these three shows that they call each other and are somehow related to possibly a block's texture, model, or block state model