Starsector horrible performance
I have ryzen 5 3600 and rx 5700 xt and the game can drop to to 6 fps when switching back and forth between missions in mission select window in the main menu. Performance in battle is also abysmal when anything more serious starts to happen. Haven't tested anything else because the slowdown is so harsh it makes it unplayable but it's a well known issue around Starsector's forums - game running poorly on AMD GPUs. It's not some old graphic cards we're talking about either since my system specs outclass whatever resources such a game could possibly require. Issue seems widespread so I'd assume you shouldn't have troubles replicating it.