Why do textures flicker during transitions in Hellblade II?

Entering the hallucination world, the light and shadow textures flickered eerily, ruining the mood. I tried lowering texture quality to medium, but the image became blurry while the flickering persisted, which was incredibly frustrating. I then used the GamePP BIOS Load-Line Voltage Adjustment Wizard to raise voltage from 1.40V to 1.43V per HWiNFO. MemTest86 confirmed zero errors over four scans, and AIDA64 showed memory temperatures stable at 54-59℃ with VRM temps at 63-67℃.