Tried running wired and WIFI but still same old story. I have tried the XBMC forums but no luck on a fix yet. Have done some search around the XBMC forum for this problem and it seems to be a intel problem as AMD user dont seem to have the same problems. And if they do it looks like it is a setting issue in XBMC. which i of course have tried to change but no dice. I havent tried running it on a portable device yet, but will try that today. Thanks for the tip 
I'm by no means a computer wiz so it's a bit frustrating as it works like a charm on my laptop but not on my HTPC. it's not only the library (where the posters are) that's slow, but also the files list. It's a stupid problem to have, I know. could it be chipssetdriver related? It's as if I'm trying to load a heavy graphical game and it stutters, like if I have a slow prosessor or graphics card that cannot load the graphics quick enough. Could this be the problem?