QUICKTIME PLAYER DOES NOT WORK IN MOUNTAIN LION 10.8.4?? IT LAGS WHENEVER I SPEAK IN MY MICROPHONE?

I recently updated my macbook pro to the new 10.8.4 update of apple, which i thought was pretty cool

But whenever i use Quicktime Player (The version of my Quicktime is 10.2) for recording with my Blue Yeti microphone, it starts to lag when i talk on screen and it started to annoy me A LOT! :/

Is it because of my Quicktime player version?

Please help, this has never happened before i updated my laptop!