Allow customised retrieval of review data using expandable API

We are having trouble obtaining review data including revision/repository info in an efficient manner.

Here is our current approach

1. We use Crucible's ReviewService.getCustomFilterReviews(filter, true) to get a list of ReviewData per crucible project.
2. We go through this list and call ReviewService.getReviewDetails(reviewData.permaId()) which returns a DetailedReviewData object.
3. Populate our own object class from the DetailedReviewData object and return the data.

Our current approach can take a very long time (10+ mins) for some projects to return data.
https://docs.atlassian.com/fisheye-crucible/3.6.3/javadoc/index.html?com/atlassian/crucible/spi/services/ReviewService.html