Also i just notice that a simple test, opening one trade a day for certain time without any parameter except time is very slow. It may be that Zorro is faster for more difficult tasks, but somehow for some very basic things it is not. Hope i can find ways to improve that.

Edit:

It seem there is also no generic optimization

And if i optimze a parameter with bigger steps first, then choosing a smaller range and smaler steps, in metatrader it remembers all runs with same parameters. So it does not do the same calculation again, if nothing in the script changed.

e.g first run from 200-600 with steps of 20, then 240-340 with steps of 5 => 1/4 of all runs are already made. It makes no sense to do it twice, but since you have to change the code itself in zorro to change optimize parameter thats the problem i guess...