The main thing that has prevented me from using Logseq is the general slugish or delayed feeling of the GUI. It’s not significant but enough that after using it for 2 months I swapped back to org-mode in Emacs. Even though I love org mode for general project planning, task management (gtd) and such, I have never found a comfortable workflow for actually writing non-code/non-markup in Emacs. The logseq experience of writing notes was immediately comfortable for me. Just wish it was fast.

Appreciate the clarification.

Not a great answer but I suspect this is Windows being crap. Lisp and windows have never been that great of an experience. Drakma works fine on my Fedora box.

Also, wrap your code in tick marks:
`(setf drakma:*header-stream* *standard-output*)`
⬇
(setf drakma:*header-stream* *standard-output*)