The whole BIAB installation is installed on the local C-drive, I only want to have my valuable source files (MGX, MGU, etc.) on a NAS where I can access them also with the laptop and where everything is backed up.

I render by using menu 'Audio: Export Song as Audio File' or the Icon named 'wav'.

When I copy the source MGX or MGU or SGX file to a local drive and then I start the rendering from that copied file it takes about 1 minute. But when I start the rendering by using as source MGX or MGU or SGX file directly from the mapped NAS drive it takes more than 20 minutes.

Updating, playing etc. of a source file loaded from the mapped causes no problems, its only the conversion to wav which takes very long.

I have now detected that when I only have midi instruments the conversion is always fast. As soon I use for one track a real instrument, the conversion gets slow.

Regards
Rene