Limitations

The following features are limited in SpeedLink Services:

SpeedLink's higher throughput means that task-level reporting is limited to summary information in the reporting database. Fine-grained operation-level reporting can be performed via the SpeedLink API on the client side.
SpeedLink's horizontal scalability—the number of Engines per Service— might be limited to hundreds of Engines per client, whereas standard Services are can scale over 5,000 Engines per Service.
SpeedLink limits the data size returned from an Engine to 1 MB, including the serialization overhead. Returning larger amounts of data significantly reduces SpeedLink’s performance.