We're running 8.1.1 at the moment and I'm experiencing a long delay (15 - 27 seconds or so) whenever I make an API call. The nature of the call doesn't seem to be relevant, and it's pretty consistent at least over short periods of time. From some of the forum posts I'm getting the impression that authentication is factor in the delay, but I'm wondering if what I'm seeing is "normal" or if there's anything that can be done to increase the response time from TC. I'm making a single call (starting a build) so caching the TCSession credentials probably wouldn't lead to much of an improvement (I read of 5 minute time out). It just seems a bit long for doing a basic login operation.