I have the business TP-link/Omada AX1800 Indoor/Outdoor access point.  I know this is a business AP, but I'm a simple home owner.  Here is the lay of the land.  My main router is inside my house.  I need to get a good signal to my barn and to spots between my barn and house for all my 33 CCTV cameras.  Would I mount this item on my house pointing towards my barn or would I mount it on my barn pointing to my house.  I've already put it on my barn and the highest speed I got from it was like 50 up and 50 down.  It's connect to a 1G enthernet cable.  So where should I mount it?

Thanks