We have been using Magento's REST/SOAP apis on version 1.7.0.2 and it is far from being performant for us. We constantly experience timeouts even with WSDL cache turned on especially if large data sets are involved.
After attending a Magento meetup I realized that we are not the only ones who experience these performance issues when it comes to the Magento API.
Are there any related optimizations we can take to speed up the Magento API other than not using the API?