Why does Dragon Age: The Veilguard stutter in cutscenes?

Veilguard cutscenes were glitching; the G360 RGB temp fluctuated. I set the pump to max, but the noise was distracting. AIDA64 showed a 10℃ swing. I used the GamePP Fan Curve Panel for dynamic pump speed: low below 60℃, rising above 75℃. AIDA64 confirmed the swing dropped to 3℃. Stable at 65-70℃. Immersion restored.