like the title says i will randomly get massive fps drop, i try to play with ark as high settings as i can go with having smoother fps which on other maps is normally high-epic depending on the map im not sure what i need to include to try and get some help as to whats going wrong, but my system is

CPU: Intel(R) Core(TM) i5-9400F CPU @ 2.90GHz
Driver: NVIDIA GeForce GTX 1660 Ti
RAM: 8053 Mb

and i run it modded, though i dont think i have too many as i dont go above 50 mods usually and ill be getting 60-70 fps and suddenly go down to 6 fps usually until i pause the game by hitting escape and either it will fix instantly or ill have to wait a few seconds and itll return to normal, but it happens frequently enough where its really annoying(other maps like ragnarok will give me mild stuttering but run at 40-50 fps and is much much bigger than this map/files)