Why do my horror scenes flicker like a broken projector on my setup?

The flickering ruined the tension in every horror scene. I tried overclocking memory to 3400MHz, but it crashed immediately. I needed a safer approach. I used GamePP BIOS Load Line Voltage Adjustment Wizard to bump voltage from 1.20V to 1.25V and locked timings to 16-18-18-36. Now, AIDA64 stress tests run for 10 minutes without errors. The screen is stable, and the atmospheric dread is preserved without the visual glitching that kept breaking my immersion.