nicolabortignon
commented
9 months ago @carlhampuswall I run some test, the culprit is this line https://github.com/SeedLabs-it/smart-knob-firmware/blob/9c3df5e0de16da62716b7e0a7f084d79d9b8becd/firmware/src/apps/onboarding/hass_setup.cpp#L55
I'm not sure if you are using that method correctly, but assuming you are, I would move it outside the rendering method, and statically compute with the class. (I expect the QRCODE url not to change). In this way you take the computational hit only once.
Drops to 12 from 20. goes back to 20 when clicking out.