Insurgency: Sandstorm – RX 580 + Ryzen 5 1600

I'm not too sure why, but on times this game's frames dipped down to 1-15 fps, after which it resumed working normally. I didn't download anything at the time of recording, there were basically no programs running in the background and even after restarting my machine and multiple tests, I couldn't get the game to not freeze occasionally. System Specs: CPU: Ryzen 5 1600 (Stock cooler, no OC) GPU: Saphhire RX 580 8GB MBD: GA-AB350-Gaming 3 (B350 Chipset) RAM: 2x8GB G.Skill RipJaws V DDR4-3200 (running at 2933 MHz on BIOS version F25)