How HELLDIVERS 2 runs on the Radeon RX 580
Our estimate puts the Radeon RX 580 at about 32 fps on High at 1080p in HELLDIVERS 2, which means it runs only on reduced settings. On Low the same card manages about 61 fps, and on Ultra about 23.
The graphics card is the limit here, so lowering the resolution or the quality preset is what raises your frame rate.
For a steady 60 fps, our estimate says: 1080p: Low (about 61 fps); 1440p: under 60 fps at every preset, best is 44 fps on Low; 4K: under 60 fps at every preset, best is 24 fps on Low.