Slow iperf3 performance with l2 bridge


i set up a vmware environment with a ubuntu 22.04 LTS machine with 2 NICs (one for internet and the other bridged with zt virtual interface) on one side and a windows machine with the zerotier client on the other side.

When i do iperf3 tests between the windows machine with the client and another windows on the same network bridged with the ubuntu machine, i have a strange behaviour beacuse it is so slow as compared to another scenario with two windows machine with zerotier clients installed on it.

Should i tweak any parameters on the ubuntu machine acting as bridge?

Anyone can help me ?

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