I'm seeing pump sync lag on my Cooler Master B360 Core during crowded scenes in Hitman 3. Should I lock the pump speed?

While sneaking through complex maps, the screen has this weird twitching sensation, which is super obvious at 4K. The B360 pump is just too slow to react in auto mode; the CPU hits 92℃ the moment the load spikes, creating a 15-20ms thermal lag. I tried the High Performance power plan, but the CPU just hit 95℃ and the stuttering stayed—it actually made me more eager to try a deeper fix. I jumped into the BIOS, switched the pump header from PWM to DC mode, and locked it at 100% full blast. I also dropped the radiator fan trigger threshold to 50℃. My monitoring panel showed the temp swing shrink from 20℃ to 5℃, and FPS stabilized at 110-120. There was a high-pitched whine at first, but flipping the radiator orientation fixed it. Water temps are now 30-35℃ and cores are at 64-69℃. The thermal lag is gone, and it's finally playable.