CPU counter shows inaccurate data

[Momad]

Hello sir, Good day.
After using this tool for sometime I found that the CPU data showed by it is different than the one showed in my performance from the Task Manager, see : https://i.imgur.com/OROQ0wz.mp4

Here's my entire config.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- you can reload the configuration file with right click -> Performance Monitor - (Reload Configuration) -->
<perfbar>
    <counters>
        <!-- you can run `typeperf -q>counters.txt` to list all available counters on your system -->
        <counter name="cpu" value="\Processor Information(_Total)\% Processor Time"/>
        <counter name="mem" value="\Memory\Available Bytes"/>
        <!--<counter name="netin" value="\Network Interface(Intel[R] Ethernet Connection [2] I219-V)\Bytes Received/sec"/>-->
        <counter name="netin" value="\Intel[R] Dual Band Wireless-AC 3160\Bytes Received/sec"/>
        <counter name="netout" value="\Intel[R] Dual Band Wireless-AC 3160\Bytes Sent/sec"/>
        <counter name="freediskC" value="\LogicalDisk(C:)\Free Megabytes"/>
        <counter name="processCount" value="\System\Processes"/>
    </counters>
    <pages>
        <!-- use left button click on the performance bar to switch between the pages -->
        <page offsetY="9">
            <lines>
                <line fontFamily="Arimo" fontSize="9" fontItalic="false" fontBold="false" fontColor="FFFFFF">
                    <display prefix="CPU: " suffix="% " counter="cpu"/>
                    <display prefix="· RAM: " suffix=" GB" counter="mem" decimals="2" divide="1073741824"/>
                </line>
            </lines>
        </page>
    </pages>
</perfbar>

Am I doing something wrong?

[XhmikosR]

Probably not, but the counters are using the Windows API so I'm not sure if there's something that can be done here.

[Peter]

If you want to see the same percentage that is shown in the Windows Task Manager, you need to use this counter:
\Processor Information(_Total)\% Processor Utility

I had the same feeling, dug around a bit and found this article.