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You can how to fix “Lagging Laptop When Plugged In” issue with this guide. It’s possible to speed up your laptop even when it’s plugged in. You can try the following. To begin, make sure that your laptop is set to work best when it’s plugged in at the wall. To make efficiency more important than saving energy, go to the power settings on your control panel and make the changes.
Also, check to see if there are any programmes or processes that are going in the background that are using too many resources. Task Manager (Ctrl + Shift + Esc) can help you find these jobs and end them. You can also make things run faster by changing device drivers, especially those that control power and graphics.
Also, clean the vents on your laptop of any dust or other dirt to keep it from getting too hot, which can slow it down. Lastly, if the issue keeps happening, you may want to get help from a professional to rule out physical issues like a dead battery or broken parts. You can get your laptop to work again when you put it in by following these steps.
Common Causes of Lagging When Laptop is Plugged In
- Too much heat: When your windows laptop is charged, it makes more heat. Not getting rid of heat properly can cause parts to “throttle,” which slows down to keep them from getting too hot. This usually happens when you use your laptop on something soft, like a pillow or bed, that stops air flow.
- Problems with the power adapter: A power charger that is broken or not suitable can also make your speed slow down. The charger might not be giving the laptop enough power, or it might be changing the energy in a way that makes the laptop work less well.
- Power settings: If your laptop is plugged in, the power settings may be set to prioritise energy life over speed. This is done to keep the battery safe, but it might make things move more slowly.
- Your laptop might still have things running in the background that use up resources and slow it down even when you’re not near it. Software or tasks that are programmed to run on their own, like system tasks or security software, could be these.

How to fix “Lagging Laptop When Plugged In” issue
Change how the power plan works
- Go to the Start Menu and look for Edit Power Plan. Open it up.
- Click on the link that says “Change advanced power settings.”
- Open up the part called “Processor Power Management,” and then open up the submenu called “Maximum Processor State.”
- Plugged in should be set to 100%.
- Next, open the section called Switchable Dynamic Graphics > Global Settings.
- From the list of options that says “Plugged In,” choose “Maximise Performance.”
- Then, open the section Multimedia Settings > When Playing Video.
- Hit the Balanced button on the Plugged In screen.
- Do that, then click OK.
- Turn your machine back on to see if the problem is gone.
Look at the charger’s power rating.
- Ensure the charger’s power level matches the laptop’s needs.
- Using an inadequate charger can slow down the laptop due to insufficient power.
- Conversely, employing a charger with excess power may cause temperature increases, leading to performance slowdowns.
- Check the power rating on both the laptop and charger.
- Use a charger rated for the same amount of power as the laptop.
Change Battery Power Mode
- Press Windows Key + I to open the Settings app.
- Go to System > Power and Battery.
- From the list of Power Modes, choose “Best Performance.”
- Check to see if the speed problem is still there.
Monitor Laptop Temperature
- Monitor your laptop’s temperature regularly using HWMonitor tool.
- Observe any increase in the speed of the laptop’s fans after plugging it in, indicating potential overheating.
- Ensure that the air vents of your laptop are clear and not blocked.
- Clean the air vents to remove any dust accumulation, especially during hot weather conditions.
Perform Laptop Maintenance Best Practices
- Keep software updated: This covers OS, drivers, and apps. Bug fixes and performance improvements are common in updates.
- Remove unnecessary programmes to save storage space and system resources. Remove unused apps from your installed list regularly.
- Temporary files can build up and clutter your hard drive over time. Remove these files with your operating system’s disc cleanup tool.
- Perform a virus scan to prevent laptop slowdowns and data theft. Use a reliable antivirus programme to scan your system often.
- Regularly restart your laptop: Rebooting your laptop clears temporary files and RAM, improving performance.
Question and Answer
Laptop users are usually advised to keep them plugged in for maximum benefits. Many consumers complain the laptop slows down when plugged in. Lag or slowdown is frequently caused by a laptop overheating, bad power management settings, a virus, or faulty hardware.
Running a lot of programmes or heavy apps at once can use more power, which can slow down the charge process. To get the fastest charge time, turn off the laptop or at least stop using programmes that use a lot of power. The options for power management also matter.
One common cause is running too many programs or having too many browser tabs open, which can overload your computer’s memory and slow down its performance. Another possibility is outdated software or drivers, which can cause compatibility issues and decrease your computer’s speed.