Powerline 1000 speed slow despite green LED

Hi,
I just got the Powerline 1000 v2 yesterday which says can transmit 1,000mbps max. My WiFi adapter is messed up plus my room is a dead zone, so I get anywhere from 50mbps to 0.5mbps at any given time using that. I do have a 119ft cat5 cable and I get 100mbps directly wired, but I don't own the house and can't drill holes in the attic and can't run the cable throughout the house. I got the powerline adapter so I can have a more consistent speed. I played around with the plugs and my surge protectors and got both adapters to have all 3 green LEDs on. According to the quickstart guide the pick a plug LED has red, amber and green. Both adapters show green which means it has a throughput of 80+mbps but running a speed test shows I only have 25mbps.

So the problem is I'm only getting 1/4th the speed of being directly connected despite have the green pick a plug LED on. (Other outlets had red and amber so I know those colors at least work. at first I only got 4mbps when on red.) Both adapters are the only thing plugged into the outlet, I've tried 3 different cat5 cables, including the ones that come with the adapters. My router is capable of 300mbps and I've tried running a speed test with a lot of devices connected and with everything off.

I'm not expecting a full 100mbps like being directly wired, but I was expecting like 75mbps or around that range. My connection is at least consistent now but not at the speeds I would like. Any ideas?

Thanks