To sync my files between devices, I use Synthing 1.19.2 [ST].

One on my Laptop(QOS) debian 12 as well on Desktop(QOS) debian 12 and one in Android Device (fork).

When using S.T. I get used to uploads going max 2Mbps between pc and my telephone.

One time I when running Linux live Environment with S.T. and I was surprised that up/dl was around ~90Mbps, but on Qubes I never saw this high numbers

What I have to do, to get that kind of speed ?

Is it difficult to set it up ?