Sentence:  Dotcom mania was <WSD>slow</WSD> in coming to higher education, but now it has the venerable industry firmly in its grip. Since the launch early last year of Udacity and Coursera, two Silicon Valley start-ups offering free education through MOOCs, massive open online courses, the ivory towers of academia have been shaken to their foundations. 
Meaning of the word marked with <WSD> tags:  Taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding at a low speed.