please don't change your comment constantly (or at maybe add UPDATE 1/2/3), because you had different words before, like you were saying something in this fashion:

* you probably lack good RESEARCH skills

* I can see at most 1.25x improvements - now it is 2-3x

By updating your comment you are making my reply irrelevant to your past response

Apologies, I changed this within a ~10 minute period. Never knew you would actually see it so fast.