thats exactly what i experience, 3-5 hits till a bucket is almost done if i use a high temp and a small amount (barely enough to cover a 15mm bucket hole in my buddha)
It sounds like your heating element may have issues. In any vape I've ever used with single digit temp control, going over 360 produces a decent amount of visible vapor. I very rarely go above 380-390 and pull large clouds. And the Elites seem to have some pretty well documented issues. I'd ask on FC or Reddit on the appropriate sub thread.