How to stop texture pop-in in Metro Awakening tunnels?

While sneaking through dark metro tunnels, distant wall textures emerged slowly like pixel blocks, which ruined the atmosphere. I first tried closing all background software, which reduced memory usage by 3GB per Task Manager, but the texture loading delay remained. I then used the GamePP BIOS Load-Line Voltage Guide to adjust memory voltage from 1.25V to 1.31V and relaxed the tRAS timing. Latency converged to 74-80ns per AIDA64, and temperatures stayed between 54-60℃ per AIDA64.