config.maxFps: scene frame-rate cap (default 30, 0 = free; motion stays time-based)

README.md

@@ -83,6 +83,7 @@ window.CONFIG = {
     units: { temperature: 'C' },       // 'C' | 'F'
     credits: true,                     // data-attribution block in info box
     renderScale: 1,                    // 0.3..1 internal 3D resolution
+    maxFps: 30,                        // WebGL scene frame cap (0 = free)
 
     location: {                        // drives scene anchor, sun/moon, weather
         lat: 51.5074,                  //   -90..+90, north positive