Slow slow slow AND redrawing when screen orientation is changed

Slow slow slow AND redrawing when screen orientation is changed

1) Android app is slower even then desktop and web. Why?
2) Can then NB become like every other android app so that it doesn't redraw the content of the note once the screen orientation is changed?
Why is this happening?
Often I need my notes fast, and I am standing in front of other people and we wait, wait, and then, finaly note opens, I start using it or reading from it and then I accidentaly tilt my phone little and it starts redrawing and we wait again! Fru-stra-ting!
Literally, I didn't find any other android app behaving this way! All other apps just change the orientation without redrawing everything from scratch!

EDIT: Screenshot video added
Look how CRAZY slow Nimbus is! How much is that, 7 sec to render a ONE WORD NOTE!! One freaking word! Seven seconds! 21st century! It's like they are using some digital equivalent to chisel and hammer to carve out content!