YouTube Video Lagging on Chrome When Full Screen (Fix)

Published by Nyau Wai Hoe - Updated on

YouTube is a platform that many turn to for information, entertainment, and tutorials. But when you’re ready to immerse yourself in a video by going full screen and it starts to lag, it can be frustrating. This problem isn’t uncommon, especially for Chrome users. In this article, we’ll look into the reasons why YouTube videos might lag in Chrome when full screen and how to troubleshoot this issue.

Linked issue: High GPU Usage While Watching YouTube Videos

YouTube Video Lagging on Chrome When Full Screen

Why does YouTube lag when in fullscreen?

When you encounter lag while watching YouTube videos in full-screen mode on Chrome, several factors might be contributing to the problem. Understanding these causes is crucial for efficiently addressing the issue.

1. Hardware limitations

Modern web applications, especially when streaming high-definition videos in full-screen, demand significant hardware resources. If your device lacks the necessary power, you may experience video lag. Common hardware-related issues include:

  • Insufficient CPU or GPU Performance: Watching high-quality videos, especially in full-screen mode, can be taxing on your computer’s Central Processing Unit (CPU) and Graphics Processing Unit (GPU). Older or less powerful CPUs and GPUs may struggle to keep up, resulting in lag.
  • Low RAM (Random Access Memory): Inadequate RAM can also lead to performance issues. When your system runs out of available RAM, it may start using slower storage options, like the hard disk drive (HDD) or solid-state drive (SSD), causing lag during video playback.
  • Outdated Graphics Driver: An outdated graphics driver might not be optimized for modern video streaming, leading to subpar performance during full-screen playback.

Useful tip: How to Set CPU Affinity and Priority for a Process in Windows 11/10

Check CPU and GPU in Windows 11

2. Internet connection

Smooth video streaming relies heavily on a stable and fast internet connection. If your connection is slow or experiencing intermittent disruptions, it can lead to buffering and, consequently, video lag when watching YouTube in full-screen mode.

Handy guide: How to Know Which App is Using The Internet in Windows 11

Internet Connection Speed Test

3. Browser extensions and add-ons

Browser extensions and add-ons can enhance your browsing experience by adding new features or functionalities to Chrome. However, some extensions can consume significant resources or conflict with YouTube’s built-in features, resulting in lag during full-screen video playback.

  • Resource-Intensive Extensions: Some extensions may run background processes or consume excessive CPU and memory, impacting the overall performance of Chrome.Chrome Extensions and add-ons
  • Interference with YouTube Features: Certain extensions may conflict with YouTube’s native features, leading to unexpected behavior and lag.

Other relevant issue: Game Lag When Watching YouTube or Twitch on Chrome

4. Browser settings and cache

nappropriate browser settings or accumulated cache and cookies can also impact video performance. Suboptimal configurations may prevent Chrome from utilizing its full potential, leading to lag during full-screen video playback.

  • Hardware Acceleration: Chrome’s hardware acceleration feature uses your computer’s GPU to offload certain tasks, improving performance. However, in some cases, it may cause issues. Disabling or enabling hardware acceleration might help resolve video lag problems.
  • Browser Cache and Cookies: Accumulated cache and cookies can clutter your browser and potentially interfere with video playback. Clearing them can help optimize Chrome’s performance.

Clear browser cache and cookie

How to resolve YouTube videos lag on Chrome in fullscreen mode

Now that we’ve explored the potential causes of video lagging, let’s look into the practical solutions to address these issues effectively.

1. Check your hardware

Before attempting any software fixes, ensure that your hardware meets the minimum requirements for smooth video playback. If your computer is relatively old or has limited resources, consider upgrading your RAM or using a more powerful graphics card.

Learn more: How to Check What Graphics Card You Have on Windows 11/10

2. Disable hardware acceleration

Hardware acceleration is a feature in modern web browsers like Google Chrome that utilizes your computer’s GPU to offload certain tasks, including video rendering. While hardware acceleration can significantly improve performance, it might occasionally cause issues with certain configurations.

If you experience video lag specifically during full-screen playback, try disabling hardware acceleration to see if it helps. To do this:

  1. Click on the three vertical dots in the top-right corner, then click “Settings.”Chrome settings Windows 11
  2. Under the “System” section, toggle off the switch next to “Use hardware acceleration when available.”Disable hardware acceleration on Chrome
  3. Close and reopen Chrome to apply the changes.

Test YouTube video playback in full-screen mode to check if the lag has improved. If the issue persists or you notice a decline in overall performance, you can re-enable hardware acceleration.

3. Disable conflicting extensions

Browser extensions can sometimes interfere with YouTube playback. To check if this is the cause of the lag:

  1. Click on the three vertical dots in the top-right corner, then click “More tools.”
  2. In the sub-menu, click on “Extensions.”Open Extensions on Chrome
  3. Disable each extension one by one and test YouTube video playback in full-screen mode after disabling each extension. This will help you identify if any specific extension is causing the lag.Disable Chrome Extensions
  4. Consider removing extensions you don’t actively use to improve overall browser performance.

4. Clear browser cache and cookies

Over time, accumulated cache and cookies can slow down your browsing experience. To clear them:

  1. Click on the three vertical dots in the top-right corner, then click “Settings.”
  2. In the left sidebar, click on “Privacy and security.”Chrome Privacy and Security
  3. Under the “Privacy and security” section, click on “Clear browsing data.”Chrome Clear browsing data
  4. Select “Cached images and files” and “Cookies and other site data.” You can also choose the time range for which you want to clear the data.Clear Chrome cache and cookies
  5. Confirm and clear the selected data.

5. Update graphics drivers

Outdated graphics drivers can lead to performance issues while playing videos. Visit your graphics card manufacturer’s website and download the latest drivers compatible with your system.

For detailed instructions: How to Update Graphics Driver in Windows 11

Update graphics driver Nvidia

6. Optimize your internet connection

A stable and fast internet connection is crucial for seamless video streaming. If you experience lag, try the following steps:

  • Close unnecessary background applications: Applications using bandwidth can hinder your connection’s performance. Close any unnecessary apps running in the background to free up resources.
  • Use a wired connection: Whenever possible, connect your computer directly to the router using an Ethernet cable. Wired connections are generally more stable than wireless ones.
  • Check for network interference: Ensure that your Wi-Fi router is placed in an optimal location, away from potential sources of interference.

Related problem: Ethernet Internet Speed Capped at 100 Mbps (Fix)

Check Windows 11 Internet Connection

7. Video resolution too high

YouTube offers videos in various resolutions, ranging from standard definition (SD) to ultra-high definition (UHD). Playing videos at higher resolutions such as 2160p (4k) or 1440p (2k), especially in 60 FPS, demands more bandwidth and processing power. If your internet connection or hardware cannot handle the selected resolution, you may experience lag during full-screen playback.

  • Adjusting Video Quality: While watching a YouTube video, click on the “Settings” (gear icon) in the lower right corner of the player. Lower the video resolution to a lower quality (e.g., 480p, 720p or 1080p) and check if the lag improves.Fix YouTube fullscreen lag on Chrome
  • Enabling Auto Quality: YouTube allows you to enable “Auto” video quality, where the platform automatically adjusts the resolution based on your internet speed and device capabilities. To enable this feature:
    • Open YouTube Settings: Click on your profile picture in the top-right corner of the YouTube website, then click on “Settings.”
    • Playback: In the left sidebar, click on “Playback.”
    • Video Quality: Under “Video quality,” select “Auto.”

    With “Auto” enabled, YouTube will automatically adjust the video resolution to provide the best possible playback experience without buffering or lagging.

Also see: How to Set YouTube to Always Play Highest Video Quality

Wrapping up

Lagging YouTube videos in full screen mode on Chrome can diminish your viewing experience, but with the steps provided, you should be able to identify and resolve the problem. Remember, the issue might sometimes be with YouTube itself, so if all fixes fail, it might be worth waiting a while and trying again later.

Besides, each user’s system and internet setup may be unique, so feel free to try different combinations of solutions to find the one that works best for you. Additionally, keeping your browser and graphics drivers up-to-date and periodically clearing your cache and cookies can help maintain optimal performance while streaming videos on YouTube.


Nyau Wai Hoe
Nyau Wai Hoe is the Founder and Chief Editor of WindowsDigitals.com. With a degree in software engineering and over 12 years of experience in the tech support industry, Nyau has established himself as an expert in the field, with a primary focus on the Microsoft Windows operating system. As a tech enthusiast, he loves exploring new technologies and leveraging them to solve real-life problems.

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