Welcome to my post, after some tries of solving my problem by myself i want to post it so maybe i can have an answer or anyone can help me.

My problem is the next one. when im playing a match on fifa 20 during the match im having some fps drops to 30-40 Fps for 4-5 seconds, no matter which graphics im using high,or low full screen or window... And if im on discord at the same time, my friends tell me im lagging. So i ve been investigating and i think its a problem from my processor. I let u some pics of my task manager that you can see some valleys on the use of the processor that coincides with the fps drops. But my processor works totally fine outside fifa.

https://gyazo.com/1ef7895c823205bffcfe1ff35c157f0c

https://gyazo.com/a1d0a415b8a3894b5dea21fe9f2e5ce0

My pc have:

Processor: AMDFX 8350 Eight core

GPU Asus Geforce 1060 OC 6GB
Motherboard Asus M5A78L-M Plus/USB3

RAM: 10 GB

I dont know why this happens i ve never had something like that and im really mad about this cause i cant play ok and i cant find the damn problem. We just format the Pc and changed the Thermal paste on my processor

So thanks for your time, sorry if i mistaked some english words (im spanish) and i hope i can resolve this with your help.