- s2-like lighting in a7? -no, not even close
- bv fps slower than same scene a7? -no truly comparable demos out there, but wait until gameCore 2 is released (shortly, some weeks), but i truly doubt tobias' statement
you can have the same lighting in a7 and a7 isn't slow. other engines are also only cooking with water. they don't do magic. with gamestudio there is no out of the box artist friendly solution though. the tools are a bit lacking. you will need some shader programming knowledge.