Why does Tomb Raider stutter during climbing on KingBank DDR5?

Climbing cliffs in Tomb Raider, I faced stutters that broke the intense exploration vibe. I tried moving the RAM to a different slot, but it caused hangs, which was annoying. I used the GamePP BIOS Load Line Voltage Adjustment Wizard to raise voltage from 1.35V to 1.40V and set timings to 30-36-36-96. After a crash, I relaxed tRCD to 32 for stability. MemTest86 confirmed 0 errors after 6 loops. The GamePP sensor showed stable 6000MHz frequency. The climbing is now smooth, and I feel secure in my hardware setup.