There is currently one main lever to control the rate at which CloudQuery fetches resources from cloud providers. This setting is called
concurrency, and it can be specified as part of the source spec. Note that this option was introduced in CloudQuery CLI v1.4.1.
concurrency provides rough control over the number of concurrent requests that will be made while performing a sync. Setting this to a low number will reduce the number of concurrent requests, reducing the memory used and making the sync less likely to hit rate limits. The trade-off is that syncs will take longer to complete.