Is this a crazy way to cool? (Pic)

It’s hot here and very dry. Inside of my dry tent was reaching 80 degrees so I connected it to the central AC vents and inserted a hepa filter.
intake is small 6in fan but n floor and out is 6in exhaust with carbon filter.
think this will create too mich air flow? Been running it like this and I still only get 72dgrees and 47%RH. I am trying to get 65F and 50RH
Thoughts?

Too much direct moving air probably.
Evaporative Cooler + Window Shaker + Dehumidifier(if it gets humid) works well for a drying room