Sorry if you think I blamed spaCy for anything; it was not intended; I know it was due to the way Python was used which I tried to convey. Your product is excellent and yes, I probably should've reached out more anyway; I just know how to solve things my way and did not wanted to waste more time (there was an investor deadline).
Cython part sounds good; I will try it out and email you if I get totally stuck, thanks!