Metro Awakening on Crucial DDR4 memory frequency bottleneck keeps dropping frames, does this overclock setting actually work and how much performance boost can I really get?

Heavy load scenes in Metro Awakening on Crucial DDR4 3200MHz 16GB memory slam into frequency bottlenecks and frames slide down. Pro tests recommend 30 minute stress runs with temps staying in safe range. Veteran players compare PBO optimized limits look solid and curves stay controlled. First overclock with high voltage the system went unstable, honestly nearly crashed, dialing voltage down a notch finally ran smooth. Frequency climbed into higher range and performance gained noticeably. Overclocking effect is real yet even after tweaks under extreme loads small fluctuations still show up, the crash gamble never fully leaves. Once backups are set resets recover fast but stability testing stays mandatory.