There ARE two walking speeds on the LEFT stick. You have to push very softly to find them both. But the faster speed is still too slow to make for a good transition between walk and run. So maybe that needs so be sped up a bit.
I thought that's not controller specific, but seeing that almost nobody complains about this, makes me wonder. It really is nasty and I often close my eyes in doorways, because it completely throws my equilibrium.

I find that the right stick sensitivity is set way way way way to high. If we had an option to set this, it seem that would fix a lot of these issues.

The mouse settings have absolutely nothing to do with the camera flying wildly around you, it is the right stick only. I have switched to a wired mouse, and even no mouse at all, and the problem is still there.

The latest Update got my hopes up. I just really want to play, but I am not going to go through yet another install just to find out the problems are still there.

Hope this problem has a cure, and goes away.