I've translated your recipe into percentages so others can chime in:
Coconut oil 20.02%
Olive oil 78.98%
Lye concentration 35%
SF 14.4
Based on oils alone, I would expect this recipe to require 2 months, minimum, to begin to lather well. With such a high superfat and at only 3 weeks old, I'm a bit surprised it can lather at all.