Hey greubel, any chance you have multiple roSystemLogs created? I ask, because I once saw similar behavior (albeit after a much longer period of time), and it turned out that the message queues in the roSystemLogs that weren't being monitored were filling up and bogging down the box (at the time, I was erroneously creating a new roSystemLog for each screen, so all of the roSystemLogs associated with the screens lower in the stack were filling up). Higher bandwidth could result in more http connects, filling up the message queues faster.
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