Game Server - Automatically Set Timescale/Slomo

I am trying to hose a dedicated server for Mordhau which uses Unreal Engine.

In setting up the configuration files, I am coming up completely dry on one setting, namely, the ‘timescale’ of the server.
I would like to run things at double or triple speed ( as with the ‘slomo’ console command)

Is there an argument to this effect that can be added or changed in the .ini files to achieve the desired effect?