Not trying to be funny here, but it sounds like possibly poor quality weed or you not smoking enough of it (or a little of both). Try smoking an entire bowl in the Mighty and see if you get high, not many vaporists I know can get high off of 1 hit of anything besides concentrates. Especially since your first 2 hits off of most hand held vapes are wispy, the Mighty really only hets going on hit #3.
If all else fails, take a dab of tasty concentrates, sit back , relax, and enjoy the high.
I moved from Heavy smoking to heavily vaping flower, now I rarely touch flower and dab concentrates . It feels cleaner and like a lot less work, plus the taste is fantastic these days. if you really just want to take 1 hit and be done try some Sauce, diamonds, Shatter, Rosin, wax, crumble, et. use it in a device made for concentrates (not the mighty pad or any flower vape except the flowerpot or Evo) and you will be satisfied i'm sure.