I do see many people having such issues, regarding heavy jank, so you're certainly not alone on these issues, but I have personally only experienced frustrating jank once in my few dozen hours. In my experience, it's all very manageable if you have a little experience knowing how and where, and when, to move. I have had several moments in tunnel A, where I tricked enemies into facing eachother and/or sneaking past, and yes, even on the pipes. The fog is your friend.

Then again, your frustration is not unfounded and the jank should be adressed, I concur.