diff --git a/src/core/useConfig.ts b/src/core/useConfig.ts
index c9fbea4..922efb3 100644
--- a/src/core/useConfig.ts
+++ b/src/core/useConfig.ts
@@ -1,4 +1,4 @@
-import { createRoot, type Accessor, type Setter } from 'solid-js';
+import { createRoot, type Accessor, type Setter, createMemo } from 'solid-js';
 
 import sortBy from 'lodash/sortBy';
 import uniq from 'lodash/uniq';
@@ -21,6 +21,7 @@ import {
 } from '@/hooks/createSignalWithStorage';
 import { useTranslation } from '@/i18n/useTranslation';
 import { genericEvent } from '@/nostr/event';
+import { asCaseInsensitive, wordsRegex } from '@/utils/regex';
 
 export type CustomEmojiConfig = {
   shortcode: string;
@@ -218,11 +219,13 @@ const useConfig = (): UseConfig => {
       [(e) => e.shortcode.length],
     );
 
-  const isPubkeyMuted = (pubkey: string) => config.mutedPubkeys.includes(pubkey);
+  const mutedPubkeySet = createMemo(() => new Set(config.mutedPubkeys));
+  const isPubkeyMuted = (pubkey: string) => mutedPubkeySet().has(pubkey);
 
+  const mutedKeywordsRegex = createMemo(() => asCaseInsensitive(wordsRegex(config.mutedKeywords)));
   const hasMutedKeyword = (event: NostrEvent) => {
     if (event.kind === Kind.ShortTextNote) {
-      return config.mutedKeywords.some((keyword) => event.content.includes(keyword));
+      return mutedKeywordsRegex().test(event.content);
     }
     return false;
   };
diff --git a/src/nostr/useEvent.ts b/src/nostr/useEvent.ts
index 33ab9bf..74a4b57 100644
--- a/src/nostr/useEvent.ts
+++ b/src/nostr/useEvent.ts
@@ -28,6 +28,7 @@ const useEvent = (propsProvider: () => UseEventProps | null): UseEvent => {
       const promise = task.firstEventPromise().catch(() => {
         throw new Error(`event not found: ${eventId}`);
       });
+      console.log('useEvent', props());
       registerTask({ task, signal });
       return timeout(15000, `useEvent: ${eventId}`)(promise);
     },
diff --git a/src/utils/regex.test.ts b/src/utils/regex.test.ts
new file mode 100644
index 0000000..98b10d8
--- /dev/null
+++ b/src/utils/regex.test.ts
@@ -0,0 +1,15 @@
+import assert from 'assert';
+
+import { describe, it } from 'vitest';
+
+import { escapeRegExpSymbols } from '@/utils/regex';
+
+describe('escapeRegExpString', () => {
+  it.each<{ given: string; expected: string }>([
+    { given: '^hello$', expected: '\\^hello\\$' },
+    { given: '.*+?^${}()|[]\\', expected: '\\.\\*\\+\\?\\^\\$\\{\\}\\(\\)\\|\\[\\]\\\\' },
+  ])('should return $expected for $given', ({ given, expected }) => {
+    const actual = escapeRegExpSymbols(given);
+    assert.deepStrictEqual(actual, expected);
+  });
+});
diff --git a/src/utils/regex.ts b/src/utils/regex.ts
new file mode 100644
index 0000000..5623f1a
--- /dev/null
+++ b/src/utils/regex.ts
@@ -0,0 +1,8 @@
+export const escapeRegExpSymbols = (s: string): string => s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
+
+export const wordsRegex = (words: string[]) => new RegExp(words.map(escapeRegExpSymbols).join('|'));
+
+export const asCaseInsensitive = (regex: RegExp) => {
+  if (regex.flags.indexOf('i') >= 0) return regex;
+  return new RegExp(regex.source, `${regex.flags}i`);
+};