The FTP connector can process 1 transaction per second, per node, and throttles any transactions beyond this limit. By default, Integration Connectors allocates 2 nodes (for better availability)...
How can I set up an FTP? What is the best way to do this? Is it having them upload to Google Cloud Storage bucket? Or to a VM instance? Thank you! GCS is a viable option, or have it as a sheet in Google Sheets (sounds pretty reasonable to have CSVs there)