Throttle Downstream WSUS Update Pull from upstream

Is it possible to throttle the download of updates on a downstream WSUS server i.e. when it is pulling it's updates from an upstream WSUS server? We have some downstream WSUS servers on low bandwidth links and whilst we generally schedule the pull of updates during an out-of-hours window this is problematic for us for several reasons. I'd rather they pull during the day but with throttling. I’m aware the WSUS clients can do this in Windows 10 BITS etc. but wondering can the WSUS server do this on the synchronisation cycles.