Is there any chance of getting an official answer to this please? I've googled around and this was the closest I got to a solid answer, I'm just as confused by the backwards-sounding nature of the tool tip. I have 8GB of ram so naturally I'm eager to set it to the best possible config for my system.
reduced file streaming is as it states:
ON: keeps most used game files in RAM to reduce load times on systems with systems with enough RAM, ie 4GB or more.
OFF: Disables loading into RAM and only loads the files in need off the disk for systems with low RAM.