Backend: Go (no framework, just the standard library)
Frontend: Vue
Working great so far. A little longer to get things up than using Rails/Django, but the extra speed and control is really nice.
Using Go's templating engine to assemble Vue components into HTML <script> tags works well.
I haven't yet seen any concrete tutorials for getting this up and running with Vue and Go. All I've been able to google is augustoroman/V8 and dop251/jago and other derivatives.
My only dependency is Vue (and vuex), and I only send the components that the current page needs (packed into a single <script> by the template engine). I also send the initial data inlined in that script as js objects. So there's 1 fetch to get the the HTML (usually around 200-300Kb), then 4 fetches (vuejs, vuex, css, logo file) totalling around 500Kb (and all cached, so that only happens on the first load).
So far, no speed problem and no rendering lag worth worrying about. If that changes I'll look at methods of fixing it, but I'm learning to not solve problems that I don't have yet.