v1.10.3 hangs after installation, while cataloguing

[cw2002]

When Xnview is started the first time after installation, it starts to build up the new catalogue without asking, which can take hours on my 20TB disks. After I disactivated the catalouge in the program settings, the app did't respond any longer. I waited 15 minutes and then I killed the process in the task manager.

My advise/ my asking:
1. Disable the catalouge feature by default and let users decide to activate it
2. Let the cataloguing procedure run in a separate process at low priority in the backgroud

Thank you.

[xnview]

your start folder contains which file format? All in one folder? The thumbnail process is a separate process already...