Action! Audio desyncing 3.5 secs late

[victorent]

I record my league of legends game and everytime I fishing a game, the audio starts out good but after 2-4 mins the audio becomes 3.5 seconds late... All of them I record them as mp4 60 fps 720 resolution...

And guess what, if I try avi and original resolution or 720... Action crashes and not even record and the video is corrupted...


Please help