Why does Battlefield V stutter on my Onda 9D4-VH-D motherboard?

I felt totally robbed of immersion during intense battles in Battlefield V; those dense explosion effects caused micro-stutters that made the game feel choppy. I tried enabling Enhanced Turbo Boost in BIOS, but while peak frequency rose, voltage fluctuations between 1.1-1.25V per HWMonitor became even more erratic. I finally used the GamePP Resource Scheduler to lock the processor performance state to High Performance and set process priority to Real-time. My frame generation interval converged to 10-14ms per GamePP Frame Analysis, and CPU temps stayed at 68-75℃ per AIDA64.