Why does Project Werewulf cause high memory usage?

My frame rate was dropping in Project Werewulf because AIDA64 showed memory usage hitting 80% on my Crucial DDR5 5600MHz 16GB (8GB×2). I tried disabling background services to free up space, but the game crashed immediately. That was a mistake. I switched to GamePP’s Process Priority Manager and set the game to Highest priority. This forced the system to allocate resources correctly. Memory usage stabilized at 65%, and the fan speed stayed at 1400-1600 RPM. The frame drops are gone, and the game runs smoothly without crashing.