Why does Gears 5 freeze during combat with 4GB Kingston DDR4 RAM?

I was so excited to run this masterpiece, but during intense combat, the screen would suddenly freeze. I tried closing all background software, which only freed 500MB of RAM, but the frame drops persisted as memory usage stayed above 98% per GamePP Memory Monitor. I used the GamePP Resource Scheduler to set the game priority to Real-time and restricted background process memory. Frame generation time converged to 20-35ms per RTSS, with memory temps stable at 42-48℃ per HWMonitor and usage at 3.2-3.6GB.