Texture pop-in upon spawning (post Nov 8)

When I spawn into a game I can see it take 1+ second for the nearby textures on wall/ect to fully load in. I noticed that it doesn't all load in at once but loads in parts one after the other.

Before the patch it pretty much instantly loaded in all at once after a split second.

Was this an intentional change to boost performance?

@slazenger this has always happened to me, even before the update, now after the update it just takes a little longer for textures to load in. When I posted about it before, I was told to up my texture streaming pool, which I did, and that didn't help. Then I was told my ram was the problem, but I have 16gb, so I don't understand. I still don't know what the issue is.