Unlikely. Capacity is no issue at all right now and this is the primary vector for any form of traffic shaping in a dynamic environment (which ours is), so very possibly something that we've overlooked or got wrong on our end and just need to update after some investigation. Definitely something we will monitor and investigate though as our forecasts have always been pretty good in terms of expected changes, volumes, capacity and so on and all data points to it being right so far.
What specifically are you seeing a slow-down on? In other words, what specific service or protocol? Please do send the details to support as well.
There are some changes coming in on the escalation front we hope you guys will appreciate, as well as better insight into lines and performance. It's something we've been working hard on for a while to optimise this process.