config: set renderScale to 0.33

config.js

@@ -82,7 +82,7 @@ window.CONFIG = {
     // and upscaled with image-rendering: pixelated, so it reads as pixel
     // art instead of a blurry rescale. The DOM UI stays crisp at any value.
     // 1 = native resolution (sharpest, most expensive).
-    renderScale: 0.5,             // 1 native, 0.5 pixel-art 2x, 0.4/0.33 cheaper
+    renderScale: 0.33,            // 1 native, 0.5 pixel-art 2x, 0.4/0.33/0.25 cheaper
     // Scene frame cap. All motion is time-based, so this only changes
     // smoothness, never speed. 0 = free running (vsync).
     maxFps: 30,                   // 0 = free running