I've deployed a Postgresql instance w/ Sequelize and graphql to GCP. For the first 6 months of usage I noticed no problems in performance. But recently I've noticed that the instance will hit a wall in terms of performance. Queries will time out after 25s+ - this will happen to many queries - it is not occurring on a single, specific query. Strangely, the performance returns back to normal when I redeploy a new instance, even if the code for that instance is the exact same the one that saw the performance degradation.

I've checked https://cloud.google.com/sql/docs/postgres/diagnose-issues and nothing there seems to be the issue.

Any and all help is greatly appreciated. TY