HTC Desire 500 video lagging

[BorisM]

I have Desire 500 and recently shot a video and it is lagging and I don't the reason. I tried it once, when I bought the phone and it seemed that everything was ok (that was three months ago) but now it is quite annoying. I turned off battery saver, have some 600 mb free on the phone and don't have any excess apps running... I would post a link but since this is my first post, it is not possible...