Dungeons spawn rate

[KrokusAstra]

Hi, DNL spawning in my world like every 150-300 block. It's too often for me, and sometimes drops my FPS while creating the dungeon.
Is there any way to reduce spawning chance? I opened jar data/dungeonnowloading/worldgen/structure/labyrinth.json but there is no clear "spawn chance" string, like it was in... for example... Valhelsia Structures... Is there any other congif i could use to reduce chances of those dungeons to... like... 1 per 1k blocks, so adventure to those dungeon would be actual adventure, not just casually go down into backyard. And would it help to reduce overall TPS pressure while exploring the world?

THANKS!