I've been using VLC for a relatively short period of time and recently the video files I've been watching do not play smoothly. There is stuttering in the audio and when that happens the video becomes pixelated and the colours kind of warp around (random splotches of blue, green, white and grey). I use discrete graphics (GT 620M) with an i5-3210M processor although I'm not sure whether video playback is done with the onboard graphics or not. I'm sorry if this problem has been covered, I've browsed around, but nothing seems to fit exactly to my problem and I'm not really familiar with the settings/input/codecs and whatnot of VLC and most replies contain information regarding tweaking of these.
Thanks.