Slow performance noticed by end users

On 11/29 we've had several users complaining of slow performance when using the application. People are seeing slowness when authenticating, moving between elements, and uploading photos. Some users were still experiencing slowness on 11/30. Performance degradation is not limited to a specific region of the country but the majority of the users were in the Northeast portion of the US and others were in the Central/Rocky Mountain region of the US.
Was there any sort of network outage or other factors that may have contributed to this performance degradation? We are looking to get some sort of explanation so we can find the root cause of why this event happened.

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