Lag Issues?

So, i keep having this issue with the game completely freezing for about a second. Minecraft ceases to respond completely for about a second. I have no other issues with framerate or ping.

What really confuses me is that these sudden freezes seem to be attached to certain points Not areas, structures, regions, etc. Points, or lines, or something (I don't know, I'm not use of the exact shape. All I know is that the locations are very specific).
For example:

• Somewhere in that large room you enter before fighting the Corrupter of Worlds (the one where all the corrupted spawn) causes this issue to occur.
• Somewhere in the left (east) side of the large chamber in the Prison Graveyard Cave grind spot.

Mobs, I assume, continue to move, which I can determine by the fact that as soon as I unfreeze I take the damage that I assume would be done (if I stood still, and let myself be hit by nearby mobs). This, unfortunately, is the reason I am writing this post. The first freeze mentioned above makes it impossible for me to complete the Temple of Legends quest (at least until I can just tank through the damage).

Is this happening to anyone else? What do you think might be causing it/how can I fix it?

 

This kind of thing happened to me as well, when I played for a bit in 1.14. However, after I changed the MC version to 1.12.2 (which is the most stable version for Wynncraft), the issue was gone. I'm guessing this could help in your case assuming you aren't using 1.12.2. If you are using 1.12.2, then I don't know what's causing your problem.