My game freezes during intense combat in Helldivers 2 with 4GB of RAM, how do I stop this?

The screen suddenly turned into a slideshow right in the middle of a massive explosion, and that kind of lag is basically a death sentence in this game. Looking at my logs, the ADATA ValueRAM 4GB DDR4 2666 had barely 150 MB of free space left, forcing the system into a low-efficiency memory compression mode. My frame times were bouncing wildly between 50-200 ms. I started by nuking every irrelevant process in Task Manager, which freed up about 400 MB, but the game still locked up for 3 seconds every time a new map loaded. That was a pretty naive approach. I then went into the registry to tweak the memory management policy, disabling unnecessary prefetch functions and lowering the compression threshold. Monitoring with RTSS, I saw the frame time variance shrink from 50-200 ms down to a much tighter 35-60 ms. It's still not a high-FPS experience, but the game-breaking freezes are gone. I actually had a brief black screen after the first reboot, which was scary until I restored the default boot configuration. RAM temps hovered around 38-44℃ at a locked 2666 MHz. Stability checks confirm the freezes are officially fixed.