Why does Manor Lords lag so hard as the city grows with ADATA ValueRAM 4GB DDR4 2666?

Once my settlement finally hit a decent scale, I was stoked to see the villagers moving around, but this 4GB ADATA kit is a total performance black hole. While processing complex city logic, RAM usage stayed pegged at a 3.8GB peak, leaving the CPU constantly waiting on memory page swaps. I tried dropping every single setting to the absolute minimum, but it only gained me 5 FPS and the game looked like a pixelated mess—totally unacceptable. I used PowerShell to enable Windows memory compression and manually expanded the virtual memory to 24GB. The frame time analyzer showed my minimums jump from 12 FPS to 28 FPS, and the stuttering frequency dropped by 60%. The first time I enabled compression, the system boot time increased by 10 seconds, so I had to kill some startup items to get it back. RAM temps were 38-44℃. It's still barely running, but the memory strategy switch worked.