Why does Metro Awakening stutter during tunnel scenes on ADATA RAM?

While sneaking through the eerie underground tunnels, I noticed obvious screen twitching whenever I switched perspectives, which was a disaster for stealth. I tried disabling all unnecessary startup items in the system, but releasing 200MB of RAM was a drop in the bucket against the game's resource requests, leaving me confused. I enabled the GamePP Resource Scheduler to force the game process priority to real-time and suppressed background services. RTSS monitoring showed frame times converging from 35-60ms to 18-25ms, and HWiNFO64 confirmed memory temperature stable at 42-48℃, while AIDA64 showed memory utilization at 96-99%.