diff --git a/packages/backend/src/misc/check-hit-antenna.ts b/packages/backend/src/misc/check-hit-antenna.ts
index 270a58cf13..199b2d9647 100644
--- a/packages/backend/src/misc/check-hit-antenna.ts
+++ b/packages/backend/src/misc/check-hit-antenna.ts
@@ -9,6 +9,7 @@ import { Cache } from "./cache.js";
 import { getWordHardMute } from "./check-word-mute.js";
 
 const blockingCache = new Cache<User["id"][]>("blocking", 60 * 5);
+const mutedWordsCache = new Cache<string[][] | undefined>("mutedWords", 60 * 5);
 
 export async function checkHitAntenna(
 	antenna: Antenna,
@@ -22,14 +23,6 @@ export async function checkHitAntenna(
 		if (note.fileIds && note.fileIds.length === 0) return false;
 	}
 
-	// アンテナ作成者がノート作成者にブロックされていたらスキップ
-	const blockings = await blockingCache.fetch(noteUser.id, () =>
-		Blockings.findBy({ blockerId: noteUser.id }).then((res) =>
-			res.map((x) => x.blockeeId),
-		),
-	);
-	if (blockings.some((blocking) => blocking === antenna.userId)) return false;
-
 	if (antenna.src === "users") {
 		const accts = antenna.users.map((x) => {
 			const { username, host } = Acct.parse(x);
@@ -88,16 +81,20 @@ export async function checkHitAntenna(
 		if (matched) return false;
 	}
 
-	if (
-		await getWordHardMute(
-			note,
-			antenna.userId,
-			(
-				await UserProfiles.findOneBy({ userId: antenna.userId })
-			)?.mutedWords,
-		)
-	)
-		return false;
+	// アンテナ作成者がノート作成者にブロックされていたらスキップ
+	const blockings = await blockingCache.fetch(noteUser.id, () =>
+		Blockings.findBy({ blockerId: noteUser.id }).then((res) =>
+			res.map((x) => x.blockeeId),
+		),
+	);
+	if (blockings.includes(antenna.userId)) return false;
+
+	const mutedWords = await mutedWordsCache.fetch(antenna.userId, () =>
+		UserProfiles.findOneBy({ userId: antenna.userId }).then(
+			(profile) => profile?.mutedWords,
+		),
+	);
+	if (await getWordHardMute(note, antenna.userId, mutedWords)) return false;
 
 	// TODO: eval expression