Well i tryed to set in a few extra IWT commands in my mapped spam key. Nothing changed but then i decided to not spam that fast and gues what happened. When i swaped back to the normal version and me dooing less spam, aka 2 click /second instead of 4-5 click /second (have keybind on mouse5 so can spam fast) my characters are now really close to the target all the time.

I think what was my problem was that i spamed the button TO fast so wow/isboxer whatever was the leak, crippled itself and made them not to react on every keypress.