Describe the bug
As the title says. The only thing to add here is that it happens when the game is not paused. When the game paused and looking at villager NPC, either everything just lags a lot or no lags happen at all. I show all of it in a video demonstration.

To Reproduce

1. Install specified mods and resource packs.
2. Spawn Easy NPC villager NPC.
3. Look at it.
4. Notice lag spikes.

Expected behavior
Smooth fps

Debugging
latest.log

Is the issue happening in combination with other mods? (If yes, please provide a full list)
Environment:
Windows 10 22H2
Nvidia Driver 551.61
Intel Xeon E5-2680v2
Nvidia GTX 1070
4x8Gb DDR3 ECC REG RAM

Minecraft 1.20.1
Forge 47.2.20
Entity Model Features 1.3
Entity Texture Features 5.2.3
Easy NPC 3.11.0
(Resource Pack) Fresh Animations 1.9

Additional context
Video demonstration
https://www.youtube.com/watch?v=zLosxhCba98

Originally, I opened this issue at "Easy NPC"s Github page but the mod author replied the following:

"Thanks for the update. But this not changing the fact, that some other mods taking over the rendering part like in your case Entity Texture Features (ETF) and Entity Model Features (EMF).

I'm not using any custom renderer or animation library, so if the rendering is causing any lags its nothing I could fix on my side."

After updating to Easy NPC 4.2.0, the issue is no longer present