Oh yes, Chrome based browsers are my specialty. If you have chrome, I assume you'll want to stay close to what you have, in which case I recommend Comodo Dragon, SRWare Iron, Blackhawk, Oribitum, Coowon, Torch, or Coolnovo. As for your video lag, I have no idea.
sad
When looking for new browsers, a helpful page is
the wikipedia comparison of browsers. You can sort by engine to get similar browsers. Anything based on the "blink" engine will be similar to google chrome. Webkit will be closer to safari. Trident is the same engine IE uses. And Gecko is Firefox. Usually if it has two or more engines, you'll be able to switch between them. IE: switching between chrome and firefox rendering.