It would be useful if Marketo could provide us with a meter or dashboard telling us how much "bandwidth" we're using at any given time, and maybe provide suggestions of things that could be done to decrease actions that are ongoing in the system -- with an end goal of speeding up all processes.
I know that there are "cleanups" of inactive triggered campaigns every once in a while, but there might be other things that Marketo can identify in an instance that are slowing processing down.
This is probably a much longer-term request, but with things slowing down pretty significantly recently, it seems like it might be helpful if Marketo could identify places where we could speed up our system.