diff --git a/index.html b/index.html
index 15c7cbec..683ebb38 100644
--- a/index.html
+++ b/index.html
@@ -6297,7 +6297,7 @@
 
     <script src="modules/ui/general.js"></script>
     <script src="modules/ui/options.js?v=14052022"></script>
-    <script src="main.js?v=13052022"></script>
+    <script src="main.js?v=14052022"></script>
 
     <script defer src="modules/relief-icons.js"></script>
     <script defer src="modules/ui/style.js"></script>
diff --git a/main.js b/main.js
index 4f25920f..8548efed 100644
--- a/main.js
+++ b/main.js
@@ -459,17 +459,7 @@ function applyDefaultBiomesSystem() {
   return {i: d3.range(0, name.length), name, color, biomesMartix, habitability, iconsDensity, icons, cost};
 }
 
-let optimizedQuality = false;
-
 function handleZoom(isScaleChanged, isPositionChanged) {
-  if (!optimizedQuality) {
-    setRendering("optimizeSpeed");
-    setTimeout(() => {
-      optimizedQuality = false;
-      setRendering(shapeRendering.value);
-    }, 1000);
-  }
-
   viewbox.attr("transform", `translate(${viewX} ${viewY}) scale(${scale})`);
 
   if (isPositionChanged) drawCoordinates();