I’ve set up Thunderbolt networking on two 10th-gen Intel NUCs using Thunderbolt 3, but I’m only getting an average throughput of 35-40 Mbps in iperf3 tests. I’ve double-checked all the settings multiple times and tried two different Thunderbolt 4 cables. I've tried a few different Proxmox kernels suggested in other forums, etc. Any suggestions?