I might be wrong...but...

[Tomtomcat]

I have the impression that CFS3 is running a little bit
smoother after i unzipped all the zip files from the
terrains folder , deleting the compressed files and
leaving the new folders.If you want to try that out make a backup of the terrains folder on another partition
first....

[Tomtomcat]

Ok...I changed it back to the original "zipped"
configuration after  scan disk didn

[Mathias]

tomtomcat, CFS3 creates those binary zx files off the zips and gets the data from there, just like the plane's xdp and bdp.
I kinda doubt that unzipping them has any positive effect on performance.

[Tomtomcat]

Danke Mathias ,
Maybe it was just wishful thinking ...
but I thought , I didn