[Closed] Fast way to Unify Normals?

I’m trying to figure out a fast way to do this, but can’t figure out anything that’s fast enough.

My thought is to get Elements Using Faces and collect all the Normals and if they all point on Average towards the Average Center of the Faces, then flip them.

But I’m trying to figure out if thats best, and also how I could go about going through elements, but subtract flipped/checked faces, so I don’t check the same faces/elements twice.

The Mesh could be very highpoly, in the millions of polys as well, so that is also a concern. But if it can be done within 2-4 seconds or something, thats fine. Or even up to 5 or so I guess, but if its getting towards 20-30 seconds, then I might just say forget it.

Thanks!