I'm seeing instant speed drops and FPS swings during combat in God of War Ragnarok on my Colorful B450M, how do I handle this?

Clashing with a giant boss and having the frame rate tank from 60 to 35 FPS is a total disaster for an action game. I checked the hardware and found the memory bus on the Colorful B450M-T was jittering under load, causing micro-delays in data transfer. I tried downclocking the RAM to 2666MHz, which stopped the drops but lowered my average FPS by 8, and I wasn't okay with that compromise. I ended up flashing the latest BIOS and manually offsetting the memory voltage by +0.05V to hit a stable 1.38V. In the RivaTuner frame-time graph, those jagged latency spikes were gone, and frame times locked in at 12.5-16.2ms. I did spend half an hour fixing my boot order because the BIOS update wiped my settings. Now the board stays between 52-60℃ and feels rock solid. 3DMark stress tests passed, and frame times are consistently 12.5-16.2ms.