It was a little tricky to figure out how to close out the apps, but it didn't slow down until I was running about 15 of them.
HOWEVER: WTF is with the ads at the bottom of the screen???? I want to throw my phone across the room, especially when it pops up when I'm trying to select something. I'm paying enough for my phone & service, I don't want to be assaulted with ads while I'm trying to make calls. Or playing sudoko
This is primarily my work phone.
Google, you suck IMO right now.