Autoptimize in WordPress MU

you can network activate, but you would indeed need to do settings on a per-site base. but with a bit of code you can auto-configure for your network, cfr. an example here https://gist.github.com/roytanck/e5e38d2955140b36da7e

hope this helps,
frank

have a look at the FAQ gpc1, esp. the part about “inline css” and “inline & defer css”.

for the google fonts-warning; you could tick the “remove google fonts”-option in AO? 🙂