Probleme Download from VM on pfsense

[YoIm]

Hello,

I use Proxmox with VM pfsense.

I have a NAT VM which is configured with VXLAN Tunnel. This same VM is also configured as a gateway. This VM is behind pfsense. Everything is working fine. I only have big download speed problems.
I have a download slowdown when I create a vm which is connected to my vm gateway which is connected to pfsense
After multiple searches, I suspect pfsense to be at the origin of this blockage. Do you have an idea ? I have the community version, do I have to take the paid version?

Hosted by DFOX (Nice) [0.79 km]: 46.84 ms
Testing download speed................................................................................
Download: 4.57 Mbit/s
Testing upload speed......................................................................................................
Upload: 107.43 Mbit/s

Thx.