What do I need for sub 6.9ms frametimes in Beat Saber on Linux? On Windows it gets 3.5-3.9ms on the same settings (low, to minimize GPU impact), but on Linux I get stuttery 6-7 ms, even though this should be enough for 144 Hz. SteamVR advanced frametimes say it's mostly "Application (scene)", and on Windows bars indicating this are halved compared to Linux.