How to stop lighting flicker in Phantom Brigade path tracing mode?

The neon club scene was ruined by color overflow and flickering. I tried lowering ray tracing to High, gaining 15 FPS but losing visual fidelity. I used GamePP Shader Compilation Queue Manager with DDU to clean install NVIDIA Driver 560.94, clearing 6.8GB of cache. RTSS showed frame time stabilizing from 22-35ms to 13-16ms. GPU-Z confirmed VRAM usage at 12.4-14.1GB. The settings are perfect now.