... I'm not sure if this is the greatest idea I've ever heard, or if I want to immediately run away screaming. I've always thought SharePoint was terribly slow

... I'm not sure if this is the greatest idea I've ever heard, or if I want to immediately run away screaming. I've always thought SharePoint was terribly slow, but that was just from experience interacting with the web interface itself. Does the API perform well? Or is there that same inherent latency to put up with? And do you have any general tips/ideas/learnings to share about using SharePoint in this way? I definitely want to give this a try.