Originally posted by Mazver Pentax cameras are still new to me and i just wanted to know the answer to the problem since i've never had one like this before.
Basically when using my K-5 in LiveView it has this delay like sluggish look I dont know is it really a problem or thats just the way this camera is?
I owned a K-5 until I damaged it, it has a very good autofocus system, even though it's a decade old.
A "sluggish look" is probably more a function of how many focus points you are using, whether you are using AF.S or AF.C, distance to the subject and how much the subject fills the frame as well as teh subjects or your movement, objects in the foreground, objects in the background, lighting, etc.
Start with a simple subject relatively close against a uniform background and use live view. You might also turn on the focus assist in Live View and try both autofocus and manual focus.