Tyflow too slow to simulate

[VickyVey]

This example was the one I came across in the beginning and it's the only one close to what I want. But for some reason, that link didn't have a 3dsMax file. So thank you as this link provides with a 3dsmax file.

I was able to achieve the dynamics of the grain correctly after reading loads of different grain tutorials. The problem was how to cache it out and render... The grainy snow turned out to look like a cream when using TyCache and TyMesh... Maybe need to cache far more particles ? Maybe tinker with TyMesh further on ? Maybe buy Krakatoa ? 

Unfortunately, we have decided to use only PhoenixFD Fire with motion blur for our project without Tyflow as it's far quicker to experiment with the amount of time allocated for my R&D. 

Pity... but I will still continue this snow trial in my downtime... who knows for the next projects...