@matigo We do have to be careful when talking of doing stuff on a Core i5 1.6 GZ MacBook Air. My 2011 11-inch has those specks as does @streakmachine's 2015 model. Yet performance-wise, they're poles apart.
On Geekbench 3 results, his is over 50% faster than mine.
// @skematica @streakmachine @jextxadore