Updates from DCS are often very large and therefore take quite a long time to download.
Normally the updater uses torrents for downloading and uses as much bandwidth as it can get.
But there are situations where you don't want this. Examples:
You can change the updater settings by running the following command:
DCS_updater.exe settings
The best way is to open a command line (Win + R key, cmd, Enter) and change to the <DCS-Installdir>\bin\ directory using cd command:
Or you can copy the Update DCS World link and change it:
As soon as you start the updater with the settings parameter, the following window appears in which you can make the settings: