Network very slow on Dell D3100

[vpalau]

Good Morning,

I'm facing some problems with the ethernet connection, it is very slow compared to being directly connected to the ethernet of my laptop.
I got a Dell D3100 on ubuntu 20.04

I've tried both drivers with the same results:
- displaylink-driver-5.6.1-59.184.run
- displaylink-driver-5.6.0-59.176.run

Can you help me out, please?

I have attached the 3 files:
- 2 screenshots of networks rate transfers on both: connected to ethernet directly and also via dock station:
- ethernet_laptop_2023-01-30_09-59-29.jpg
- dock_station_d3100_2023-01-30_09-57-12.jpg

- The ouput of the DLSupportTool_Output_2023
- DLSupportTool_Output_2023-01-30T09:42:22.874667.zip

I appreciate your support.
Kind regards,
Vincent