blurry video

hello guys
i am sure this is comon problem
but i follow many settings in vegas to get good quality
in video
but still i get blurr
i read problem may be frame as i record in one frame rate and encode in other
i think this may be problem
i record in camtasia at 30fps, and encode in vegas at 29.970fps
please guys, can this be problem for blurry?
spasibo