Toolbar slow on Raspberry Pi 1B and 3B (Docker/Alpine)

Did you do Initial Configuration?
See https://codeigniter.com/user_guide/insta...figuration

Yes, baseUrl is set.
I tried setting it in .env, app/Config/App.php and even set it dynamically with constant in app/Config/Constants.php, but this doesn't have any effect.

i don't know why this is important specifically for the toolbar as the code seems to be embedded in the page itself (which takes 16s to load on RPI3 vs 200ms when disabled).