Hello,

While swimming on Lava in survival mode, I noticed that in certain areas of the Lava (considering it was placed on a block and is falling from its position), the first person view of the player does not update as frequent as it should, giving an effect of "stutter" or even lag when viewing the game in this perspective, but third person is completely fine.

I provide a video with me replicating the problem: https://www.youtube.com/watch?v=1wi64KGjsvU&

At the start of the video, I show the type of lava formation in which this bug was found. I was using lava as a way of going up and down in the Nether, since water is not an option. There is 1 block of stone under the lava.

At 0:08 in the video, I show that going up and down in that area does nothing in both first and third person.

At 0:16, as I move to another location within the lava formation, it starts "lagging" while going up and down.

You can see that at 0:32, while in third person, the lag that was seen in first person disappears.

In 1:06, I switch to survival mode under the conditions that I was playing when I discovered this bug.

It seems that this does not affect all parts of the lava formation, which makes this even more random, as you can see in 2:10.