Fix fade transition feels too slow and laggy

src/app.css

@@ -33,7 +33,7 @@ a.hashtag {
   width: 100%;
   height: 100vh;
   overflow: auto;
-  transition: opacity 1s ease-in-out;
+  transition: opacity .1s ease-in-out;
 }
 .deck-container[hidden] {
   display: block;