I think sort would be even better because it's less Swenglish. It's the base for sorting in Swedish (sortera) after all. Sört does really bother me since it sounds so wrong (almost like the u in blur). Sårt use closer to how Swedes would pronounce the English word sort, that's true.
At least they changed the first word to Kvick because it means the right thing and sounds about right. And it happens to be my family name.