Thank you very much for your quick and helpful response,
Also thanks for CodePen tips,
I have already updated my previously provided CodePen (just cleared most of path elements, left only 2, and made changes from your example),
I guess my mistake was the missing of that transition properties,
At the moment trying to apply that changes to my main project,
I am just curious and have another question: How are you determining the "X" and "Y" values (in a result, scaled object should be in the center of bounding box)?