Hi,
I discovered that HotS enables mouse acceleration on my MacBook as soon as it is started. I generally have mouse acceleration disable via terminal and it works like a charm in every other application. But as soon as I start HotS mouse acceleration is enabled and I see know way to disable it.
It seems that this problem has already been reported in the old forums: https://us.battle.net/forums/en/heroes/topic/20419654802?page=1
However none of the solutions which have been proposed do work. Also this has been around for quite some time by now and I would like to know if there is gonna be a fix anytime soon, since this makes HotS unplayable on my MacBook 
I have a MacBook Pro 2018 with Intel Core i7 and 16GB RAM running 10.13.6.
Thanks, let me know if you need more information!