After you executed your build 3 times with IncrediBuild, we recommend that you generate the logs of these builds, and send them to us. We'll review your logs, and if we'll find ways in which the acceleration of your builds can be improved, we'll give you our recommendations and suggestions for performance optimization.
If you haven't succeeded to fully execute your build with IncrediBuild, or your tasks were not distributed across your remote Agent machines, follow the instructions on GeneratingLogs for Failed Builds: