Fix game lag when using Alt+Tab on Windows

Windows has long become a multitasking operating system, I don’t remember clearly from what version, but that’s why users often tend to use many programs at the same time.

Especially us gamers, we often have the habit of playing games while listening to music, surfing Facebook, or even watching Youtube…

To switch between program windows, regular users often use the mouse, but for gamers, there is a key combination. Alt + Tab Legend, saved the day when parents ganked :)))

However, there are a few cases when you use key combinations Alt + Tab To switch back and forth between windows, lag occurs, so what is the cause? Please join us in finding out how to fix it in this article!

#1. Why does using Alt + Tab cause lag?

As you all know, we often use Alt + Tab to switch between Windows windows while playing games, because when playing games in full screen mode, the mouse cannot be used. Of course, most games today support 3 display modes, including:

• Full screen – Fullscreen: Displays the game in full screen mode, this mode helps the computer focus all the hardware power on that game.
• Windowed: Displays the game in single-window mode, working alongside other open applications
• Borderless window / Full screen – Borderless Windowed: Still window mode but will display in full screen like Fullscreen mode, other applications still run in parallel.

You can easily try out these 3 display modes in the settings of the national game League of Legends.

Most of us use full screen mode to have the best experience with the game we are playing.

When the game runs in full screen mode, the system will put all the hardware power into the game you are playing, to push gaming performance to the highest level.

As for the applications you are opening, they will be put into Suspended mode to minimize the use of computer hardware resources.

So when you use the Alt + Tab key combination to switch to another application, the game will be minimized to the Taskbar, and Windows will restart the software you selected from the Paused state.

And doing so many times will cause Windows to constantly restart the application, especially with games that have poor hardware optimization, causing black screen, lag or even Crashed game. always.

#2. How to fix lag when using Alt + Tab to switch windows

As I explained above, the reason most games are displayed in full screen mode is to focus all the hardware power on the game.

So the simplest way is to limit turning on other applications if not necessary while playing games.

Or if you must turn on other software during the game such as OBS, Bandicam… to Live Stream or record video of the game screen…

Please go to game settings => find and switch the display mode to mode Cửa sổ - Windowed or Cửa sổ không viền - Borderless Windowed okay.

In windowed mode, the game being played will be given top priority in terms of system resources, other applications will still operate normally, not in windowed mode. Tạm dừng so switching back and forth will be much faster.

But you also have to trade a little in terms of performance and overall smoothness of the game played in windowed mode. Just try it and you will find the most suitable mode for yourself!

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#3. Conclusion

Yes, so I have just finished instructing you to fix the situation The game lags when using Alt + Tab to switch back and forth between application windows on Windows operating system.

And if your computer’s configuration is not too powerful, you should close all applications when playing games, and open the game in full screen mode to get the best experience. Wishing you happy gaming!

Collaborator: Nguyen Thanh Tung – Blogchiasekienthuc.com