Something wrong with Helldivers?

Helldivers 2 has slowly been getting more buggy for me. Frames slowly dropping over time, long boot-up times and the audio cutting out, especially during the Helldive sequences (loading screen from ship to planet). And now since the Illuminate update, it's gotten worse. Frames are worse than Bloodborne, and even after lowering the graphics to low and setting performance mode, they still aren't above the usual 100 fps I used to get. Even on the Ship! And don't get me started on illuminate, that mf drops to the low 20s. Is there anything I'm missing or is the game getting more taxing or is my Graphics card dying? Am I the only one experiencing this?