Unstable FPS with i7 6700K CSGO

[EchnoRom]

Hey,
Essentially whenever I play CSGO my FPS becomes very unstable, it will switch from 350 to 120 sometimes for no evident reason. Occasionally when a few grenades etc pop up my FPS can go below 100! Currently my PC is running an i7 6700k and a GTX 1080. Needless to say that streaming, which is something I wanted to do is nearly impossible. I have my CSGO in-game settings on Lowest for everything, and have CSGO set to high priority. Knowing that this is a very CPU intensive game i'm wondering why my FPS is so unstable with this CPU, which is relatively powerful.
Thanks.

 

[SgtScream]

Is this the case with all games, or just that game?

 

[EchnoRom]

Is this the case with all games, or just that game?

It does happen occasionally to some other games like PUBG or GTA5. I just notice it more in CSGO since I dedicate quite a lot of hours into it.

 

[SgtScream]

What are your cpu and gpu temps while gaming?

 

[EchnoRom]

What are your cpu and gpu temps while gaming?

Just tested while in-game.
CPU: 45
GPU: 47
(Was in-game CSGO with 100fps on lowest settings!)

 

[SgtScream]

How many memory modules do you have? Can you list your full hardware specs please?
Also can you turn window's power plan to "high performance" in control panel then test to see if there's an improvement?

 

[EchnoRom]

How many memory modules do you have? Can you list your full hardware specs please?
Also can you turn window's power plan to "high performance" in control panel then test to see if there's an improvement?

Full Specs:
CPU: i7 6700k
RAM: 16gb DDR4 (Default Freq 2153MHz)
GPU: Gigabyte GTX 1080 8GDDR5
MOBO: ASROCK Z170 Extreme4
Storage: SSD 240GB & HDD 2TB
CPU Cooling: H100i Corsair Water Cooling

I already had High Performance power plan set.

 

[SgtScream]

Did you repurpose your SSD? You could try a clean install of Windows.
You could also try disabling antivirus and/or non-Microsoft services to see if a program is conflicting:
https://helpx.adobe.com/x-productkb/global/disable-startup-items-services-windows.html