Slow type checking in editor

When editing, the squiggle underlines of, say a syntax error or automatic code suggestion from the linter take a while to clear relative to when the syntax error itself is fixed

I'm attacking this this through a combination of moving several `*`-imports (needed to fix unit tests anyway) and small config changes.

I want to say things are a little better now but I dont have a great way to test so wanted to open this to track the issue just in case others encounter it too