Yesterday we released Pulumi

1.10

. This release includes two significant improvements related to performance: (1) users with very large numbers of resources (hundreds) will see significantly less network traffic during deployments and (2) Node.js users who were seeing high memory usage (or long delays unrelated to cloud provisioning) should see significantly reduced memory usage and improved performance. If you fall into either of those categories, please grab

1.10

and give it a try!