How to fix micro-stutters when turning in Resident Evil labs?

Every time I turned to face a monster in the dark labs, the screen would stutter, killing the horror vibe. I tried disabling all power-saving options in the BIOS, but temps just rose by 5℃ and the stutters stayed. I then used the GamePP Hardware Sensor page to drop the frequency to 5800MHz with locked 36-36-36-76 timings. Now, MemTest86 errors dropped from 12 to 0, memory temps are 56-60℃ per AIDA64, and latency is a steady 102-118ns per AIDA64.