Mike, are you signed into Chrome? Where your favorites bar is synced to your google account in the settings area. I had something very close to what you're experiencing. I had to remove everything synced with my favorites bar and this disconnect the account and start over. Once I did that chrome was fast again. There might be something in your favorites bar, like mine causing the slowdown.
It has something to do with your sync data being stored on Googles server. Open Chrome and go to settings, while logged in and your account is synced, click the "Google Dashboard" url in the sign in area. A new window will open up, scroll down to the bottom of page, click "reset sync" tab. Then disconnect your google account, close chrome, uninstall...