Why does Battlefield V drop frames on GALAX H410M Shadow?

Aerial combat in BF V was unusable with frame times fluctuating between 12-28ms. I tried disabling the memory controller in Device Manager, but that crashed the system. I then used GamePP Peripheral Driver Conflict Detector to set the RGB sync service to Manual startup and enabled hardware encoding priority in OBS. RivaTuner showed frame times stabilizing at 8-11ms. HWiNFO confirmed temperatures stayed at 50-56℃. This is the only way to export stable performance settings.