• Faster on slower CPUs: at the end of each frame the renderer re-checked all the game memory the frame used, and on CPUs without a large cache that was a big part of the frame. It now re-checks memory that hasn't changed for a while only now and then (#78).
• Audio: the game's two audio threads no longer keep the CPU busy while they wait for each other, leaving more of it for the game on 4-core CPUs (#39, #17, #96).
• Audio: those threads now get the high priority the game asks for (#39).
• Intel GPUs: the blue sky, the blue slider tracks, the cyan health bar, jittering menus and broken animations are fixed (#18).