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Ubuntu: 20.04.1 LTS
Intel i7 9th Gen
Graphics: Nvidia GeForce 1660 ti 6GB
256 SSD (Ubuntu Installed) 1TB HDD
I open my system, I usually do my work, sometimes, when only disconnect or connect to an Wi-Fi network, all of a sudden it works slow, very slow. Even the mouse response being delayed is very acknowledgeable. Doesn't know if Wi-Fi or anyother is responsible. Please is there anything I can do to fix this?

top in terminal gives me this, when running only chrome currently and terminal opened,

And this is screnshot of free -h and vm.swappiness

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  • there must be something running in the background...Identify it using the System Monitor application..or type "top" in terminal Jan 31, 2021 at 10:22
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    Edit your question and show me free -h and sysctl vm.swappiness and screenshots of the top command in terminal, and the Disks app SMART Data & Tests scrollable data windows for both SSD and HDD.
    – heynnema
    Jan 31, 2021 at 16:08
  • any temperature related log entries in /var/log/syslog and/or /var/log/kern.log and/or /var/log/*? Just as a test, try running with turbo disabled or the maximum CPU frequency reduced. Jan 31, 2021 at 16:31
  • @heynnema I did as you said. Did you find anything? Feb 2, 2021 at 6:17
  • @DougSmythies What am I searching in /var/log/*. how to know what causing this? Feb 2, 2021 at 6:23

1 Answer 1

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Enter the command sudo apt install htop to install Htop to see what's causing the heavy load. If you find one, just simply kill the process to check if that solves your problem.

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  • I don't usually have any third party applications installed, so how could they cause it. You think one of any software present in Ubuntu 20.04.1 LTS itself is making this happen? But I found out that, If I connect to Wi-Fi and use sometime and if connection interrupts or if I disconnect, then my pc was slow, after a reboot it came normal So, any thoughts? Jan 31, 2021 at 10:36
  • do you have some network storage mounted or use VPN or so?
    – pLumo
    Jan 31, 2021 at 11:19
  • This information needs to be in your Question above, not buried among one answer's comments where few will see it.
    – user535733
    Jan 31, 2021 at 13:18
  • @user535733 hey I am not sure that Wi-Fi is doing that or I am even sure now, so how can I say it in question then. Feb 2, 2021 at 6:16

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