So yes I am one of those free weekend users, and I thought I would be nice and learn the ropes through single player before I jump online. However it seems to take forever to load, and no my computer doesn't suck. I am sure of that, is it just a one time chacing thing, or it is single player only?
Get into a sniper fight with someone using a mouse and you are using a keyboard if you both have the same skill the mouse will dominate the keyboard-MisterMetal
There's a trick you can do with UE2.5 games that worked for Red Orchestra and Killing Floor before this update. I'm not sure how well it works after the update since I haven't done it yet myself, but I may if it will help with the protracted loading this update introduced.
I'm not certain, I have never attempted it myself. You could post and see if anyone on the Steam or Tripwire forums had any insight into the matter I guess.
And for the freeze/nearly freeze on map changing, try deleting your System folder in the Killing Floor directory, changing your download server location on Steam, and then verifying your game's file cache. You'll have to set all your options again, but it may help with the freezing.