I've been playing Fallout using 7-0.6 with the launch options of 'gamemoderun %command%' for 57 hours (according to Steam) and in this time the game has run great. However, 3 days ago something happened and the game would only run extremely laggy, like everything was in slow motion. It was completely unplayable and nausiating. For 3 days I'd launch the game and see if it was improved but no. BTW, I previously tried to run the game with other versions of Proton but only 7.0-6 would actually launch the game. This morning I tried changing the version of Proton but still nothing else would actually launch the game. I changed the launch options and now the game runs perfectly again. Well, runs great. Perfect is a bit of an exageration. You still get the occassional lag and must alt-tab out and forcefully close the game using Steam's STOP button. But other than that, it's back to normal.