How to fix micro-stutters in Manor Lords during urban growth?

During large-scale urban planning, I noticed memory usage slowly climbing to 88% per HWiNFO64, and the screen began to exhibit tiny stutters. I tried restarting the save file, but memory usage only dropped by 3%, proving that fragmentation couldn't be solved in-game. I used the GamePP Resource Scheduler to clear inactive cache and locked the frequency to 3600MHz. RTSS showed frame times returned to a stable 11-14ms, and HWiNFO64 confirmed temperatures at 43-49℃ during peak load.