1650 by 1050 is 1,764,000 pixels 1920 by 1080 is 2,073,600 pixels. Assuming that you can get it to run on 1920 by 1080 then you need to upgrade your computer to handle the extra pixels. 1920 by 1080 is quite demanding by the way.
So 2.5 gigs of main memory min, tomshardware to check your graphics card on the list at the end of the monthly ratings, and check your cpu to see if there is a faster version available.
On the software side check you are running TS2009 in native mode, build a simple test layout and see what the frame rate is like. Some content is more demanding than others.
Cheerio John