I see people online in forums talking about how fast the charge bar goes up, and I see videos of some people getting full charges in 4-5 hits. But when I play my lvl 26 Kensei, It'll take a good 7-8 hits to gain about 5% of my charge bar. I played from 1-26 in a single sitting and I must've gotten fully charged about 10 times.

Does anyone have an idea why my class is not working?