diff --git a/contentScript.js b/contentScript.js
index 7db8cd8..40516ed 100644
--- a/contentScript.js
+++ b/contentScript.js
@@ -1,16 +1,3 @@
-window.addEventListener('message', e => {
-    if (e.data === 'requestCpuInfo') {
-        chrome.runtime.sendMessage(
-            'requestCpuInfo',
-            cpuInfo => window.postMessage({ cpuInfo }, '*')
-        )
-    }
-});
-
-const script = document.createElement('script');
-script.src = chrome.runtime.getURL('initCpuInfo.js');
-document.documentElement.appendChild(script);
-
 const commandButtons = {
     toggleMute: 'button[data-at=muteAudioBtn]',
     toggleCamera: 'button[data-at=muteVideoBtn]',
diff --git a/initCpuInfo.js b/initCpuInfo.js
deleted file mode 100644
index 45873e3..0000000
--- a/initCpuInfo.js
+++ /dev/null
@@ -1,20 +0,0 @@
-;(function rwcCpuInfoInit() {
-    let promiseResolvers = [];
-    window.addEventListener('message', e => {
-        if (e.data?.cpuInfo && promiseResolvers.length > 0) {
-            const resultResolver = promiseResolvers.shift();
-            resultResolver?.(e.data.cpuInfo);
-        }
-    });
-
-    window.rwc_getCpuInfo = function getCpuInfo() {
-        let promiseResolver;
-        const result = new Promise(resolve => {
-            promiseResolver = resolve;
-        });
-        promiseResolvers.push(promiseResolver);
-        window.postMessage('requestCpuInfo', '*');
-
-        return result;
-    };
-})();
diff --git a/manifest.json b/manifest.json
index 1544dbf..263f36c 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
   "background": {
     "service_worker": "serviceWorker.js"
   },
-  "permissions": ["scripting", "tabs", "system.cpu"],
+  "permissions": ["tabs"],
   "action": {
     "default_popup": "popup.html",
     "default_icon": {
@@ -61,11 +61,5 @@
       "matches": ["https://v.ringcentral.com/*"],
       "js": ["contentScript.js"]
     }
-  ],
-  "web_accessible_resources": [
-    {
-      "matches": ["https://v.ringcentral.com/*"],
-      "resources": ["initCpuInfo.js"]
-    }
   ]
 }
diff --git a/readme.md b/readme.md
index 5fa94e5..0173919 100644
--- a/readme.md
+++ b/readme.md
@@ -1,6 +1,6 @@
 # RC Video Companion
 
-Source for RC Video Companion - chrome extension that simplifies work with RingCentral Video service from a browser.
+Source for RC Video Companion - Chrome extension that simplifies work with RingCentral Video service from a browser.
 
 Features:
  * Fast switch to RCV tab from anywhere button/hotkey (in meeting tab is preferred)
@@ -8,7 +8,6 @@ Features:
  * Camera on/off button/hotkey (the same as previous)
  * Start/stop screen sharing button/hotkey (the same as previous)
  * Hotkeys customization
- * CPU load provisioning (to allow client to minimize power consumption)
 
 
 ## Installation
diff --git a/serviceWorker.js b/serviceWorker.js
index a4023f1..2f199d1 100644
--- a/serviceWorker.js
+++ b/serviceWorker.js
@@ -1,17 +1,5 @@
 self.importScripts('commands.js');
 
-chrome.runtime.onMessage.addListener(
-    function(request, sender, sendResponse) {
-        if (chrome?.system?.cpu?.getInfo) {
-            chrome.system.cpu.getInfo(sendResponse);
-        } else {
-            sendResponse('unavailable');
-        }
-
-        return true;
-    }
-);
-
 chrome.commands.onCommand.addListener(function(command) {
     if (command in commands) {
         commands[command]?.();