diff --git a/lib/internal/url.js b/lib/internal/url.js
index a1473fdac8aba3..736f23101014b9 100644
--- a/lib/internal/url.js
+++ b/lib/internal/url.js
@@ -1472,7 +1472,10 @@ function getPathFromURLWin32(url) {
     }
   }
   pathname = SideEffectFreeRegExpPrototypeSymbolReplace(FORWARD_SLASH, pathname, '\\');
-  pathname = decodeURIComponent(pathname);
+  // Fast-path: if there is no percent-encoding, avoid decodeURIComponent.
+  if (StringPrototypeIncludes(pathname, '%')) {
+    pathname = decodeURIComponent(pathname);
+  }
   if (hostname !== '') {
     // If hostname is set, then we have a UNC path
     // Pass the hostname through domainToUnicode just in case
@@ -1578,7 +1581,8 @@ function getPathFromURLPosix(url) {
       }
     }
   }
-  return decodeURIComponent(pathname);
+  // Fast-path: if there is no percent-encoding, avoid decodeURIComponent.
+  return StringPrototypeIncludes(pathname, '%') ? decodeURIComponent(pathname) : pathname;
 }
 
 function getPathBufferFromURLPosix(url) {