How do I fix frame generation stuttering in Rainbow Six Siege on Soyo SY-Classic B660M?

During the package breach phase, my view switching felt like moving through mud. I tried lowering graphics quality, but the input lag persisted. I enabled the GamePP Memory Controller Load Monitor and adjusted timing from 16-16-16-39 to 15-15-15-38. Frame time stabilized at 12ms per GamePP. VRM temperature stayed at 55-60℃. The system finally felt responsive and stable.