Your server just needs time to grow. High rates are also very popular with today's likings. One thing that attracts players nowadays is the inclusion of Third Jobs. People like me, have tried them already, and fell in love with them. So if you have those on your server, it's generally a plus. (Unless you have a Low Rate, people on Low Rates don't like them for obvious reasons).
But anyways, that's just me. Your server sounds perfect to play on for me, however the only thing that stops me from doing so is no 3rd jobs. I've played trans servers since they came out, and they're kinda boring. 3rd jobs are new, and fun.
But anyways, that's my two cents. You don't even have to do that to gain players, just give it time, and invite friends, have your players vote, and get the word out to people.