diff --git a/framework/core/less/forum/PostStream.less b/framework/core/less/forum/PostStream.less
index 06470cad5..b4ea701f8 100644
--- a/framework/core/less/forum/PostStream.less
+++ b/framework/core/less/forum/PostStream.less
@@ -16,7 +16,7 @@
   100% {opacity: 1}
 }
 .PostStream-item {
-  .animation(fadeIn 0.6s ease-in-out);
+  .animation(fadeIn 0.4s ease-in-out);
 
   &:not(:last-child) {
     border-bottom: 1px solid @control-bg;