Qbittorrent degraded perfomance in docker

[psychicsubset]

the image im using is the hotio but the same thing happens with binhex, and even using glutun with linuxserver.io qbittorrent image, last thing i have to test is using libtorrent v1

On a fresh boot of qBittorrent, everything is fine, but after about 15 minutes, I notice that my speeds drop significantly, and some torrents even stall (Ubuntu Server, ZFS filesystem, 128GB RAM, 12700K, tested on a 1TB NVMe and an 8TB HDD).

I compared the same torrents on a similar type of drive on my Windows system, and it downloads perfectly fine with no drop in speeds (13900K, 64GB RAM, tested on a 1TB NVMe and 4TB HDD).

My VPN provider is Proton, and I run it through WireGuard. During testing, I connected to the same servers on my Windows system, and Windows performed significantly better.

Is there some setting I’m missing in qBittorrent that's causing these issues?

Second problem:

This is related specifically to the Ubuntu server. I download to my temp folder, which is either the 1TB NVMe or the 8TB HDD, and transfer to my main ZFS pool when finished. The moves appear to be slow. I can transfer a similarly sized file from my Windows computer via Samba to my main ZFS pool much faster. Is this because the move process is different when it's done by qBittorrent?