As "Blue Skies" Jacqui said you have to watch for a while and catch glimpses of sharp detail, atmospheric turbulence can cause a lot of distortion while visually observing. Also as "Starkler" Geoff said after your mirror has cooled it should look better.
As for images of Jupiter on IIS ... they are generally composed of hundreds of frames of data and aligned and adjusted with software to bring out those brief glimpses. It is highly unlikely you will ever see such details at such high resolution through your telescope visually.
Having said that I have recently bought a WO 110mm Apo Triplet refractor and on the couple of occasions I have viewed Jupiter lately I have been knocked out by the detail that that scope presents ... better than my 180mm Mak to date and I've been observing for several years now.
So it will only get better the more you do it.
Have fun ... you'll love it when Saturn returns to our skies as well.
