Why is FFXV choppy during combat with KingBank 16GB RAM?

During flashy combat combos, my frame generation time suddenly jumped from 11ms to 38ms, making the whole experience feel choppy and unresponsive. I tried enabling XMP in BIOS to hit 3200MHz, but the system just blue-screened after two hours of play. I then used GamePP Resource Scheduler to raise memory controller priority to High and disabled background scanning. Now, the frame generation interval has converged to 10-14ms per RTSS, and frequency is stable at 3200MHz per CPU-Z with 82-95ns latency per AIDA64.