All of the OS X performance differences is from the busy box vm, not from docker. And for networking, if you use a different network driver than default the performance issues go away - the bridge/proxy stuff is slower, but you can expose raw interfaces.

That said I’m also not a fan of docker except in certain cases(ie if you need polyglot deployment). The development story is worse- OS X disk performance is bad, and good luck getting a debugger or most tooling to work. It’s an extra layer to worry about, such as now you manage number of containers and number of servers instead of just servers.