How do I fix texture pop-in in Defense Grid with DDR5 RAM?

Seeing distant mountains as pixel blocks was painful. I tried manual XMP in BIOS, but it black-screened and rebooted, which was a total waste. I switched to GamePP Resource Scheduler, setting priority to Real-time and locking 6000MHz with 30-38-38-108 timings. MemTest86 showed 0 errors after 6 cycles, and HWiNFO confirmed stable temps at 48-52℃. The fix worked perfectly.