How do I stop frame rate stutter while climbing in the new Tomb Raider?

Cliff climbing scenes stuttered due to voltage fluctuation. I tried changing slots, but the system hung. I used the GamePP BIOS Load Line Voltage Adjustment Wizard to increase voltage from 1.35V to 1.40V and set timings to 30-36-36-96. MemTest86 confirmed zero errors over 6 loops, and GamePP sensors showed stable 6000MHz. I backed up the profile for future use.