I'm getting terrible read-write latency and stutters during map loads with ADATA DDR3 1600; help!

Trying to run a modern DLC on DDR3 memory is like pushing a car through deep mud; every time Kratos crossed a zone boundary, the game just froze for 2-3 seconds. It was ridiculous. The ADATA ValueRAM 8GB DDR3 1600 bandwidth is just too low, and the memory controller was pegged at 92-97% while trying to stream 4K textures. I fell for some 'memory booster' software, but it didn't speed up a thing and actually caused a crash during combat—I felt totally ripped off. I scrapped the software and disabled 'Superfetch' at the system level, then manually split the virtual memory across two different physical disks to spread the I/O load. In Performance Monitor, page errors dropped from 150 per second to about 20-30, and the loading hitches became way less frequent. At first, the loading actually got slower because of disk fragmentation, but a full defrag fixed that. Memory temps sat at 55℃ - 62℃ at 1.5V. I exported the load logs, and fan speeds stayed steady at 1400-1600RPM.