Resident Evil 9 is having VRAM clock swings on my V360 MERLIN at Ultra settings. Should I ramp up the pump?

Walking through those creepy castle halls, I noticed slight screen tearing, which is a classic sign of GPU thermal throttling. The Valkyrie V360 MERLIN pump was idling too low, and the cold plate couldn't handle the 350W transient spikes, causing the VRAM clocks to bounce between 9000-10500MHz. I tried lowering the resolution to save the hardware, but the game looked blurry and temps only dropped 3℃—a pathetic compromise. I went into the software and locked the pump at a constant 3200 RPM and linked the radiator fans directly to the GPU temp. GPU-Z showed the core stabilizing at 62-68℃, and the memory clocks stopped jumping. I had a brief issue where the fans were cycling on and off constantly, but adding a 5℃ hysteresis window silenced the system. Liquid temps are sitting at 34-38℃. 3DMark confirms the performance swings are gone, and the system is rock solid.