Question My laptop runs games poorly when plugged in

[ArmanAriCool]

Hello
I have a idea pad 3 laptop
I was playing a video game on my lap top while plugged in, everything was alright just like how it was before, 60fps, smooth suddenly it dropped to 17 fps and stayed like that
Now matter what I do ( I changed lots of battery power plan and settings) it runs very poorly when it's plugged in
P.s when I unplugg it, runs very good

 

[Nighthawk117]

What's the full specs and what game?

Sounds very odd it works fine on the battery but not plugged in. I was going to suggest the power plan is wrong but you've already checked that.

 

[ArmanAriCool]

The game was mgsv phantom pain which over the last 4 months ran pretty good
And my specs are
8 gig ram
Mx350
i5-1135G7
I also have 500gig ssd

 

[Nighthawk117]

The game was mgsv phantom pain which over the last 4 months ran pretty good
And my specs are
8 gig ram
Mx350
i5-1135G7
I also have 500gig ssd

So to clarify, if you were to run this game now on the battery the frame rate is ok, but if you were to plug the laptop in and run it you get poor performance?

Have you checked the same GPU is being used on battery as plugged in, i.e. it's using the Nvidia GPU in both cases and not the Iris Xe?

 

[ArmanAriCool]

It uses both of them
Mx350 94-95% (47c)
Iris 4-5%
It also uses 59% of my memory

 

[geofelt]

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.
For intel processors, if you see a max of 100c. it means you have throttled.
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 90% instead of the default of 100%
You may not notice the reduced cpu performance.