Lags when processing Paper2D tilemap collisions

Hey

Trying to create on the fly isometric 2D map generator using Paper2D. But facing a freezing problem when processing tilemaps layer collisions. I use set of predefined tilemaps and on runtime take some tilemap and spawn it(UPaperTilemapComponent). On spawn, i disable collision of tilemap component and after all transformations are finished, enable it back. And at that moment FPS drops from 60 to 15(when tilemap is big, it takes about 1-2 seconds). When layer collisions are disabled, all is fine

Help plz, which way to dig

Tilemap collisions look like this

And entire map collisions