A not so documented feature is the support of VMXNET3 in VMWare Fusion. It cannot be configured through the UI but by manually editing the VM configuration file (VMX-file), you can leverage it (assuming you have installed VMWare Tools and/or are running a supported guest OS).

Open the file with your favourite text editor, but avoid using Apple's TextEdit as it has a tendency to replace regular quotes with opening/closing quotes, which will break your VMX-file. You can use Terminal and open the file using Nano if you want to be sure.

Network adapters are specified with ethernet*. as the starting line, where * = the number of the network adapter (0 is the first, 1 is the second, and so on).   ...