We are currently addressing an issue in our cloud environment where instances hosted on the ondemandus13 stack are currently experiencing performance issues. Caused by high load of the database.
For information on identifying the stack where your instance is hosted, please review the "Identifying Your Sugar Cloud Stack" section of the Using the Support Portal guide: https://support.sugarcrm.com/Resources/Using_the_Support_Portal/index.html#Identifying_Your_Sugar_Cloud_Stack. Our Operations team is aware of this issue and is actively working towards remediation.
This thread will be updated with any new information once available.