I'm not sure if there's an equivalent in GCP but one of the issues we have with AWS lambda is that cold start performance is also greatly affected by whether or

I'm not sure if there's an equivalent in GCP but one of the issues we have with AWS lambda is that cold start performance is also greatly affected by whether or not the function is running in a VPC. In addition to warming up the function, a virtual network interface has to be attached to the worker. This can take 10+ seconds in the worst cases. Hopefully this is an issue AWS fixes soon. The VPC cold start latency could end up forcing you to make some less than optimal infrastructure choices like running infrastructure on the public internet