FPS Drops in FNIX Bases

Hi, new user and player, whenever i played close to a full level FNIX base location (either SP or MP) my fps drops from 40-50 to the 9-15. As i understood, i’m playing between the minimun and the optimal hardware requirements. At this point i wanna know for sure if it’s a hardware limitation or is something else going wrong
My PC:
Mother: GA-F2A68HM-H
Apu A10 7860K
RAM 12GB
GPU: MSI GTX 970 4GB

PD: Yes i know i have old components, but i can’t finish my new pc yet (in my country the prices are just unfair for anything). I wanna know that when i set up the new pc the drops will stop or if just something else that i can’t actually fix.
The new pc will have a Ryzen 5 CPU and 16GB of ram when i can
Thank you for your time and answers