[atlas] API advice to pull data from multiple measurements

Hi, I would like to pull data from DNSMON probe measurements to build a real-time view. Considering the combination of IPv4/IPv6, UDP/TCP, multiple nameservers per TLD, it quickly adds up to 150+ measurements. I started with the streaming API, sending register messages for the measurements of interest, but quite quickly I am getting errors with "slow_down" response. I could not find the rate limit values in the documentation of the streaming API. Using the HTTP API would also mean hundreds of API calls, one per measurement. What is the recommended way to regularly pull data from many measurements, to avoid rate limiting or generating too much load on the API ? Regards