performance degrading with time.

[houou]

Haven't heard of that happening, no.

I got it on video is not as exagerated as I mentioned before, but is like x2~4 times slower.

First time 0 to 40 frames. (10~11 seconds)
Second time on a new file 0 to 40 frames ( 3 or 4 seconds )

It can get worst than this.