Hotspot works great on one device, terrible on other 2

eudaman

    I have 3 devices all with the one plus plan for unlimited hotspot.  First device is a Samsung s9 and it works awesome for using as hot spot.  Can stream to the TV at 480p without issue and my laptop connection is very speedy.   However both my iPad pro and my Samsung note 8 are slow as molasses despite being on same TMobile plan.  I've called support numerous times for this with no resolution.  I don't get why I'm having this issue.  Speed test in same location shows s9 as far superior as well. 

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