"root.tick" / ".textures" Taking too long

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