I'm getting memory overflow and stuttering in complex scenes in Kai no Kiseki with Corsair DDR5. Why?

I can't believe this game is actually maxing out 32GB of RAM; it felt like my PC was trying to breathe through a straw. Loading a large map would push memory usage above 95%, turning the game into a slideshow, which is just ridiculous. I tried closing every single background app, but it only saved about 1GB, which felt like a waste of time. I finally went into the Advanced System Settings and manually set the virtual memory to a fixed block of 32768MB - 49152MB on my NVMe drive. In Resource Monitor, the commit charge dropped from 45GB to a more manageable 32-38GB, and the stuttering frequency plummeted. I did notice a slight delay during system boot after the first change, but I fixed that by disabling a bunch of useless startup items. Memory temps were hovering around 50-56℃, which is barely acceptable. I used a performance analyzer to export the memory curves for archiving, with fans screaming at 1400-1600 RPM. It's playable now, but the memory management in this game is a mess.