Zhumell 10 Inch Dobsonian Reflector Telescope

i am a newb, just bought my first light bucket, and have used it for a
few nights. i feel it is not as clear as i would of suspected and was
wondering if it could be something that is not right. when looking at
say jupiters moons, each moon is not a dot but rather a boomerrang
shaped, which one might think is from movement, but its the same with
the fan on or off, and the base is sitting on a pretty serious
concrete patio. i've collminated the telescope like 8 times, all with
the same results. i am using the 1.25" lense. i am wondering if it
is a factory problem, or something else, of if this is common, and i
should get use to it. if anyone has any experience or thoughts, it
would be very appreciated. thanks

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