HELP !!!

In my N73 Music Edition video H264/AVC 384Kb/s 25 fps is veri nice BAT NOT FLUID !!!

HELP ME !!! ... IS IT POSSIBLE TO RESOLVE THIS PROBLEM?

IN :
http://www.forum.nokia.com/main/reso...deo/index.html
NT3: 384k H.264/AVC

BEST REGARDS
MARCO