Lightroom 4.4 Scrolling Speed

Just got a new surface pro 8 from owning a macbook.  I'm trying to find a app to replace iPhoto so lightroom seemed liked the obvious choice since it syncs with my iPhone and has a cloud interface so on the the surface should be better and more of a pro app.  The one issue I find is scrolling through my images is slow compared to the even theweb interface.  The web interface is super smooth and also the iPhone app but Lightroom 4.4 on Windows 11 is choppy. It start off scrolling fast but as you go through the library it slows down and then if you go back to beginning of the libary you can see it loading the images breifly and they are upside down before it refreshes(why?).  Confusing how the web interface can be better than the app.  My libary has about 12000 images.  I had a iBook in 2004 that could scroll though images smoother than this.  Anybody else expereince this?  Is this just expected?