Hello Kenny,
I see that a colleague has already responded to your inquiry about a week ago. As mentioned there, to performance, which includes reducing latency and increasing throughput, making sure that the data is being sent to a closer location will help. Additionally, implementing best practices will also help improve the overall performance for your Cloud SQL Server instance.
If you would like more assistance on the matter, I suggest that you quickly read through this documentation on how to open an Issue Tracker entry under the right component to get more hands-on support.