I use to have a GTX 560 that ran QL on default settings at 2560x1440 with 125+ FPS at all times, no matter the map or how many people were there.

After getting Fallout 4 and finding out it's time for an upgrade, I purchased the Asus R9 380 strix 4gb card and it runs Fallout 4 at ultra settings, but now I'm getting between 20-40 FPS on QL, wtf?

Anybody else experience something like this?

I have the most recent drivers, default settings, etc.