For game Angels Online or Angels Love Online,i using or run from my RAM Disk.What do we need to know about RAM disk:
1-Faster data transfer than hardisk,solid-state drive(SSD)
2-Lower time consuming loading file
1-Volatile.mean its write function(save file) may not work same like hardisk.
2-Not permanent change until saved by user action or schedule
3-RAM capacity limitation
Angels Online or Angels Love Online game folder is around 2GB. Mean your system need 2GB RAM capacity ONLY for RAM disk. In my case,my PC is total 8GB of RAM and i spend 2GB RAM disk for game folder.
Download SoftPerfect RAM Disk here(my suggestion and currently im using it too)