Terrible chunks / world generation after installing Alex's Caves

[ElenaNya]

Minecraft: 1.20.1 Forge: 47.2.30

Spectator mode at full speed.

Before:

After:

In general, it is quite logical that the generation mod slows chunks down, but it is too much, plus it seems to affect and chunks in which there is nothing from Alex's Caves?

[LucaBarbaLata]

i also have this issue. but this time it lowers my server's tps.

[Vikthos]

I have the same issue :(