Mudi E750 speed problem

I just recently got the Mudi Gl-E750. I connected Mudi to my Home WIFI and Wireguard VPN. I did a speedtest with the setup with WIFI from Mudi and was getting very low speeds so I connected the same computer directly to the Home WIFI and used the Wireguard app to connect to the same VPN and saw speedtest go up by 4x compared to the speed i got via Mudi.

Can someone suggest what should I do to get similar speeds over VPN using the Mudi Gl-E750.



The router’s CPU processing power is less than that of a PC.
Below is the VPN rate we tested.