Download speed dropped from 50Mb to 1Mb

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Good afternoon,

I have a connection 50/50 Mb and OPNSense runs virtualized in a Proxmox VM.

Yesterday I upgraded OPNSense from 21.7.8 to 22.1 and after that my download speed dropped from 50Mb to something between 0 and 1.5Mb

Upload speed is still around 50Mb and ping is around 4 ms

Another test I did was running a speed test from the OPNSense VM (speedtest-cli) and there I got normal download speed.

I reinstalled the kernel but the problem persists.

Any suggestion?