Question Performance problem with Lenovo laptop.

[antonov277]

Hi guys, I have a Lenovo V15 G4 IAH laptop, and its performance decreases when I plug in the charger. What could be causing this?

 

[Lutfij]

Welcome to the forums, newcomer!

I have a Lenovo V15 G4 IAH laptop
Is this;
https://psref.lenovo.com/syspool/Sy...ec.PDF?v=40fd52da-5136-45eb-b157-57086b51e00a
your laptop?

its performance decreases when I plug in the charger
Might want to clarify what you mean by performance decrease.

Might want to see if your laptop is pending any BIOS updates. Followed by OS updates.

 

[Secret-Squirrel]

.............. its performance decreases when I plug in the charger.

Head over to Windows Settings -> System -> Power & battery -> Power mode. Ensure that "Plugged in" is set to "Best performance". Or, if your laptop is using a third-party power tweaker then check there too.

 

[antonov277]

Head over to Windows Settings -> System -> Power & battery -> Power mode. Ensure that "Plugged in" is set to "Best performance". Or, if your laptop is using a third-party power tweaker then check there too.

Hi, I've already tried that and nothing changed.

 

[antonov277]

Welcome to the forums, newcomer!

I have a Lenovo V15 G4 IAH laptop
Is this;
https://psref.lenovo.com/syspool/Sy...ec.PDF?v=40fd52da-5136-45eb-b157-57086b51e00a
your laptop?

its performance decreases when I plug in the charger
Might want to clarify what you mean by performance decrease.

Might want to see if your laptop is pending any BIOS updates. Followed by OS updates.

Yes, that's the model of my laptop.


For example, I usually use a program called FL Studio to make music, and when I plug in the charger, the CPU usage spikes, which causes the laptop to slow down. And it's not just with FL Studio — this issue affects the entire system in general.


I want to emphasize again that the performance drop only occurs when the charger is connected

 

[geofelt]

My canned response to laptop performance issues:
---------------------------
I see many complaints about gaming laptops not performing well.
Usually gaming while plugged in.
One common cause is thermal throttling.
Laptop coolers must, of necessity be small and light.
The coolers are also relatively underpowered.
If you run an app such as HWMonitor or HWinfo, you will get the current, minimum, and maximum cpu temperatures. Set to see each individual core.
For intel processors, if you see a max of 100c. in red, it means you have throttled.
I think the number for ryzen is more like 85c-90c.
The cpu will lower it's multiplier and power draw to protect itself until the situation reverses.
At a lower multiplier, your cpu usage may well be at 100%
What can you do?
First, see that your cooler airways are clear and that the cooler fan is spinning.
Use a windows balanced power profile, not the performance profile.
Set a minimum cpu performance to something like 20%

It is counter-intuitive, but, try changing the windows balanced power profile advanced functions to a max of 95% instead of the default of 100%
You may not notice the reduced cpu performance.

 

[ctrl.az]

Hi guys, I have a Lenovo V15 G4 IAH laptop, and its performance decreases when I plug in the charger. What could be causing this?

Your laptop might be switching to a power-saving plan when plugged in.

Go to Control Panel > Power Options

Make sure you're using “High Performance” or “Balanced”, and check the “Plugged in” settings under Processor power management

Set Minimum and Maximum processor state to 100%
My laptop is this one, and I’ve seen the same problem with it