nonak23

can you describe how to do it – when I during media file name change – the optymalization is done, and spend me some time and slowly my server

Yes but is possible turn it off (the optymalize view) during change media file name

no no
making time when opening – Image Information and – Optimization Info – Image sizes are good!

https://drive.google.com/open?id=1_wfG_KY5oZiyE2nBa0JhwhdBzO-nPpkX

If I want only change jpg name its not nessesery to check all image optylaization