Débit problem

Here’s the corrected English text:

Hello, I’m reaching out because I have a MikroTik RB3011 that I’ve connected to my home internet box, which is also connected to my dedicated server to create an EoIP tunnel. On the local network, I have a speed of 1 Gbps. However, on the external tunnel that I’ve connected to my Proxmox server, I only get a speed of 37 Mbps. Interestingly, a virtual MikroTik setup achieves the full 1 Gbps. I’m not sure what to do anymore.

A diagram and your config, minus the sensitive data, would be a start.