I got rid of catalyst drivers because there were some issues with some other games I was playing. Went back to using open source RadeonSI drivers and tested out the dark mod. Last time I tried playing the dark mod on the open source driver I had a black screen for menu. When I fixed that, the main menu was sluggish and I had to use the console to quit TDM. I couldn't even play TDM and performance was terrible for other games. Now the performance is amazing. If your on linux with an AMD card, there is no reason to use catalyst anymore. I've only tried Saint Lucia so far, I'll try other FMs and report my findings.