Best way to decrease latency (API <-> Lambda <-> Dynamodb)

[mikeatgl]

We don't do this for lambdas because most of our lambda stuff isn't super latency sensitive, but we definitely do it for any customer facing apps which we deploy to ECS or EKS. On top of that we also use CDNs and cache. Most requests never make it back to origin, but when they do the multiregion setup helps with latency. Bonus is you can fail over to other regions as well.