Why does Gray Zone frame time spike during intense group combat?

Frame time spiked to 45ms during combat, causing fatal stutters. I tried disabling the memory device in Device Manager, which stabilized frames but killed my stream. I used GamePP Peripheral Driver Conflict Detector to set Razer Synapse to manual start and enabled hardware encoding in OBS. RivaTuner confirmed frame time stabilized at 7-12ms. Task Manager showed CPU usage at 65-72%. Verify your setup now.