That you're already max level. Stop playing so much. When you're playing, stop 'doing' stuff. Just sit around Sol space station and look at everyones uniforms. Spend more time out fitting your ship.
Stop getting experience, spend time admiring the immersive qualities of Risa and Vulcan. Enjoy the beach, and join in the massive dance party. Stop rushing!
If you are already an Admiral, or approaching Admiral status it is your own fault. No one should be able to burn an entire games content in under a week if they are playing in a reasonable and responsible manner!