I have optic fiber 20mb/s upload and 90mb/s download
qbittorent limit is only 1mb/s for upload and download

I have 2 problems,
1, when i download a torrent with a lot of files, my hdd is 100% busy when i download at 20mb/s, (and 70mb/s for a single file) i really need a way to limit a torrent to 16mb/s for example else my computer is very laggy

optic fiber > hdd or ssd, so please could you adust limits to the hardware ?
2, i seed a lot of torrents and i need to limit my last torrent released to 18mb/s for upload so 2mb/s are remaining for other torrents.
thanks you.