Dehumidifiers put off a LOT of heat, and really aren't needed till mid to late flower, if they end up needed at all. I would definitely take that out. You also have to figure, the air coming through the intake fan is being heated by both the motor and the friction of the fan blades, so that may be doing more harm than good. Open up the passive intakes at the bottom and see if that helps.It was sucking, the walls were coming in, with just the exhaust fan.
Now, with the intake fan + exhaust fan, it looks like the walls are expanding. Not as bad with intake at Medium power, and exhaust at max but i rather not have to run the exhaust fan at max 24/7 if i can prevent it.
The back left is a dehumidifier. Thinking about replacing that with an AC/dehumid combo if i cant manage to get the temps lower.