diff --git a/app/components/HoverPreview/HoverPreview.tsx b/app/components/HoverPreview/HoverPreview.tsx
index 3374fdbe8..304f0c38a 100644
--- a/app/components/HoverPreview/HoverPreview.tsx
+++ b/app/components/HoverPreview/HoverPreview.tsx
@@ -17,7 +17,7 @@ import HoverPreviewDocument from "./HoverPreviewDocument";
 import HoverPreviewLink from "./HoverPreviewLink";
 import HoverPreviewMention from "./HoverPreviewMention";
 
-const DELAY_OPEN = 300;
+const DELAY_OPEN = 500;
 const DELAY_CLOSE = 600;
 
 type Props = {
@@ -126,18 +126,18 @@ function HoverPreviewInternal({ element, onClose }: Props) {
   useKeyDown("Escape", closePreview);
   useEventListener("scroll", closePreview, window, { capture: true });
 
-  const stopCloseTimer = () => {
+  const stopCloseTimer = React.useCallback(() => {
     if (timerClose.current) {
       clearTimeout(timerClose.current);
       timerClose.current = undefined;
     }
-  };
+  }, []);
 
-  const startOpenTimer = () => {
+  const startOpenTimer = React.useCallback(() => {
     if (!timerOpen.current) {
       timerOpen.current = setTimeout(() => setVisible(true), DELAY_OPEN);
     }
-  };
+  }, []);
 
   const startCloseTimer = React.useCallback(() => {
     stopOpenTimer();
@@ -172,7 +172,7 @@ function HoverPreviewInternal({ element, onClose }: Props) {
 
       stopCloseTimer();
     };
-  }, [element, startCloseTimer, data]);
+  }, [element, startCloseTimer, data, startOpenTimer, stopCloseTimer]);
 
   if (loading) {
     return <LoadingIndicator />;
diff --git a/plugins/iframely/server/iframely.ts b/plugins/iframely/server/iframely.ts
index 1c5c0cdea..f7989d973 100644
--- a/plugins/iframely/server/iframely.ts
+++ b/plugins/iframely/server/iframely.ts
@@ -1,3 +1,4 @@
+import { Day } from "@shared/utils/time";
 import env from "@server/env";
 import { InternalError } from "@server/errors";
 import Logger from "@server/logging/Logger";
@@ -8,7 +9,7 @@ class Iframely {
   private static apiUrl = `${env.IFRAMELY_URL}/api`;
   private static apiKey = env.IFRAMELY_API_KEY;
   private static cacheKeyPrefix = "unfurl";
-  private static defaultCacheExpiry = 86400;
+  private static defaultCacheExpiry = Day;
 
   private static cacheKey(url: string) {
     return `${this.cacheKeyPrefix}-${url}`;