Problem with performance

Hello everyone. I installed zorin os 16 core yesterday. During the installation it found all drivers, but when i play some 4k video on youtube it's glitching (it's not playing smooth). I'm using chrome and microsoft edge. In Windows 10 it plays smooth, any glitches. And one more problem is when i visit to speedtest.net and start network test my laptop starts glitching, even mouse pointer doesn't move smooth. Please help. I like this linux distro, but i have these problems.

laptop specs:
Intel Core i3 1005G1
8GB RAM
256GB SSD NVMe
Screen Resolution: 1920x1080

Can you please post the output of

sudo lshw -c network

and

sudo lshw -c video

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@Aravisian Yesterday I also faced mouse pointer glitch on Zorin OS but when I booted into windows OS to check my mouse it started working fine.

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Screenshot from 2021-11-27 23-39-22
Screenshot from 2021-11-27 23-40-25

In your case, you may need an earlier kernel. Killer Wifi 1650i has notoriously been troublesome with Linux.
What is the output of

uname -a

Kernel Install guide:

sudo apt install linux-headers-5.8.0-63-generic linux-modules-5.8.0-63-generic linux-modules-extra-5.8.0-63-generic linux-image-5.8.0-63-generic

sudo apt install linux-headers-5.4.0-81-generic linux-modules-5.4.0-81-generic linux-modules-extra-5.4.0-81-generic linux-image-5.4.0-81-generic

sudo apt install linux-headers-5.11.0-27-generic linux-modules-5.11.0-27-generic linux-modules-extra-5.11.0-27-generic linux-image-5.11.0-27-generic

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If your trying to play 4k when your resolution is only 1080 that would be issue for glitch

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Good point. I was focusing on that notoriously troublesome Killer Wifi...

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