I've been playing Minecraft Realms for years; version 1.13 was fine. But in 1.14 the graphics updating is horrific...not just a little problem. The lag as I move around, even for near by terrain is bad...significant gaps in the terrain, very slow to update. Not even playable. Particularly bad when moving about on the oceans, but noticeable and bad even on land.

I have invested considerable time building an environment with villages, railroads, etc. It will be a great disappointment if I have to give it up, which I will be forced to do if the runtime is not improved.

Note this is new issue is nothing like the distant horizon effect, where the distant view develops as we get closer.