How did you install it? Did you extract the .exe first and then run it? Because I've heard people having problems if they ran it from inside the zip. I'm getting nothing like you mention. In fact, my libraries are opening quicker and responding better. I also turned off my AV just like in the regular installation just in case. You can back up your libraries (though I'm pretty sure they don't get erased) and uninstall and do a fresh install if you want to get rid of the update.