Low clock speed while gaming.

BlueApolo

Hi, I usually don't post anything as I normally find the help I need on the other posts.
I couldn't this time, so here I am.

I have a VX5-591G with 16GB RAM, a i5 7300hq and a GFX 1050 4G VRAM.

As of 2 days ago, I noticed a gradually poor performance while gaming.
To illustrate the situation here are some screenshots taken from the Task Manager Performance tab:

Below is the situation as soon as the games starts


Here is the speed after a few minutes with my laptop plugged in:


If I unplug the notebook and play using only the battery it improves the clock speed:


And when I quit the games the clock speed returns to normal:


The temperature while gaming reaches 90 - 94 C.
I tried a lot of thing like resetting the battery via the pinhole, searching the BIOS for some battery settings. 
My power management settings in in HIGH PERFORMANCE plan.

I didn't test a different power cable or plugging it in a different wall outlet.

I hope I made myself clear and I'd appreciate if someone could help me. 

andylb

Excellent detail in your post, I wish everybody did the same
High Performance is correct for gaming and make sure your battery is charged to 100% BEFORE gaming and KEEP plugged in while gaming
Definitely Thermal Throttling so you need to undervolt, those temps over 90 are to high, fortunately one of our dedicated gaming members has designed some custom Throttlestop profiles, they are very easy to use, well tested and safe, click on the link below
https://community.acer.com/en/discussion/577183/throttlestop-undervolt-profiles-pre-made/p1?new=1

The fact that it has started happening gradually points to paste deterioration so I would also repaste with Grizzly Kryonaut, paste deteriorates over time and Acer don’t use the best

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