Sounds like a content problem, not a technical problem.
Recruitment *can* hit as high as four or five percent, but often is below 1% effective even for large established regions. I recommend that you start your region off with a few friends - people you chat with, roleplay with, etc - to have an active base and some regional activity. You need an attractive base to build off of first. Then you need to realize that your recruitment is competing with dozens of other messages from far more established regions, and find your niche to sell. Growing region with lots of opportunity? A specific roleplay niche? Whatever.