diff --git a/main.js b/main.js
index 71c16e69..b10ad0c4 100644
--- a/main.js
+++ b/main.js
@@ -1927,7 +1927,7 @@ const regenerateMap = debounce(async function (options) {
 
   shouldShowLoading && hideLoading();
   clearMainTip();
-}, 1000);
+}, 250);
 
 // clear the map
 function undraw() {