Ubuntu's network performance is significantly lower compared to Windows systems.
Ubuntu's network performance is significantly lower compared to Windows systems.
Refer to TSing for guidance. Another resource is the Ubuntu blog post from July 7, 2017 discussing if using ifconfig is still relevant today.
In summary, updating the driver from the manufacturer on a desktop is generally not harmful and worth trying.
I ran a speed test on Speedtest.net and noticed the upload speeds were consistent, while the download speeds varied.
You might consider running an apt-get update followed by an upgrade if they haven't been done yet. It's hard to say exactly what you know about Linux, but checking performance and duplex settings is a good idea, since slower speeds could point to driver issues.
It seems like you're saying you think the issue might be related to driving, and your abilities are being used up.