I'd like to see the ability to modify the cache size setting for a given cluster. MongoDB has a straight forward pattern of using 50% of the memory for cache size. However, Atlas has scaled that down to (RAM - 1 GB) / 2. Apparently that was done to allow for extra memory for other Atlas features like BI Connector and Atlas Search. However, we currently aren't using those features, so we're stuck with the lower cache size.

It would be great to have the ability to get the most of our servers instead of being limited based on logic that may apply to us, especially when it goes against the logic used if we were hosting our own MongoDB clusters.