Maaaybe? I don’t know how much or if in that case it would be better to have an external developer contribute from the outside like any other user contributing to an Open Source project. I don’t have enough knowledge in this field. I would love to know, though. 
The way it is now I don’t even know how the internal developer status is regarding speed ups. Maybe they are working on it but not full force or are stuck in a way. Maybe an external dev would collide wit te curent progress …
That’s why I was trying to summon @dfelinto or maybe @brecht to this thread to clear things up.