At approximately 9:38am the slow request limit was reached which was detected by our Auto-heal rules. This queued the instance logging the slow requests to recycle.
There was a brief degradation of performance while the instance was handling the slow requests and then while it was recycled, once this was fully complete normal performance was resumed at around 9:47am.
Auto-heal rules are a normal part of system operations and do not typically impact on performance in this way. We are therefore carrying out further investigation into improving the speed of these recycles to mitigate further impact of instance recycling.