Lads, I have resolved my problem. Please forgive me for this huge forehead moment. Upon opening up my PC to reapply thermal paste I noticed something odd. It turns out that the previous time that I had applied thermal paste (which correlates to the 2 months I spent in stuttering agony) I had left my fan/heat sink unclipped/secured above the CPU. It was basically wiggling. While placed vertically the heat sink was making no contact with the CPU. This means for the last two months my CPU has been holding on by a thread with no cooling what so ever. I went ahead and scraped the old thermal paste and cleaned both CPU and heat sink with rubbing alcohol. Reapplied thermal paste and lo and behold my game has never run better. I will also mention that everyone that has helped managed to boost my PC even further with all their settings that I was never even aware of so I thank you for that. This has been quite the journey.