Open Core with slow download

Hello everyone, I have an Open Core Monterey who work fine, except for downloading which is really slow.

Speedtest give me 50-100 Mbit/s, but for example, it makes 1h to download a 250Mo file.

Same when I need to work on a distant server. And when I just navigate on web or watch video, I have no issue.

My connection is in ethernet, I specify that I go through a 4g box, which is rather stable

Any ideas ? Thanks to anyone who wants to help me :)

My configuration :

Motherboard: Gigabyte Z170X-UD5 TH

CPU: i7 6700K

RAM: 2x16gb DDR4

GPU: AMD Radeon RX 5700 XT

submitted by /u/Powerful-Ad9884
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