Kenapa frame time melonjak drastis saat melawan swarm tikus di A Plague Tale?

Frame time melonjak 8-45ms (RivaTuner) saat fight intens, bikin gameplay patah-patah. Saya coba nonaktifkan memory controller di Device Manager, tapi stream terputus. Saya pakai GamePP Peripheral Driver Conflict Detection Tool untuk set service manual. RivaTuner kini menunjukkan frame time stabil 7-12ms dan CPU usage aman 65-72% (OBS).