Why is GTA VI loading slow on my Soyo SY-King Dragon H410M motherboard despite having enough RAM?

The loading bar stalled for minutes while crossing the city, making me feel helpless. I tried reseating the RAM, but the system still recognized it as single-channel, keeping bandwidth below 40% per GamePP. I identified the asymmetric slot configuration and moved the RAM to A2+B2 slots to enable dual-channel mode. Bandwidth utilization jumped to 85-92% per GamePP, and frame rate stabilized at 75 FPS, confirmed by MemTest86.