How do I stop frame drops in Hitman 3 stealth missions on a Colorful B760M-T WIFI V20?

Sneaking through the manor was frustrating due to stutter, with frame times jumping from 10ms to 18ms. I tried overclocking the CPU, but the system became unstable and crashed. I then used the GamePP Power Plan Switcher to change the mode from Balanced to High Performance. The CPU frequency stabilized at 4.8-5.0GHz, and temps held at 72-75℃ per GamePP Hardware Sensor Page. The gameplay is finally fluid.