How to fix micro-stutters during building in Fortnite with Crucial DDR5?

I was hyped to play, but fast building combat was ruined by 90-105ns latency per AIDA64. I tried enabling hardware acceleration in Windows, but that actually made it worse, causing a frame drop every ten minutes. I used GamePP Memory Controller Load Monitor to switch the frequency to 4400MHz and optimized the timings. It finally felt smooth; RTSS showed frame time stabilized at 8-12ms and AIDA64 confirmed memory temps stayed between 44-50℃.