Re: VM Firewall + Ubiquiti AP LR
So you're saying that anything you plug in directly to the firewall (leaving aside boneyard's valid point) gets 150Mbps download, like this? ISP <-> FGT <-> PC
But if you connect wirelessly like this: ISP <-> FGT <-> WAP <-> PC then you're only getting 30Mbps download?
Assuming you're not especially far away, it sounds to me like you're connecting to 2.4Ghz radio of your AP on a single spatial stream where the PHY is limited to ~72Mbps or less, making 30Mbps a realistic possibility if there is any congestion on the channel (likely with 2.4 band).
Maybe try a different AP or try limiting the SSID to 5Ghz only (hopefully talking about 802.11ac on both sides, but even 802.11n in 5Ghz band would likely give enough performance for your expectations).