Why does Far Cry 7 stutter during intense group combat?

Frame time spiked to 44ms during combat. I disabled the camera, but it killed my stream. I used GamePP Conflict Detector to set Synapse to Manual. RivaTuner showed intervals stabilizing at 7-11ms. CPU usage held at 63-71% per Task Manager, and fan speed at 2150-2450 RPM. The stream is stable.