Is this an online (streaming) video or one stored locally on your computer. If it is the former, your internet connection and the website, not your computer, control the performance.
The computer is an eMG520 laptop 2GB ram. The buffer is so slow I am thinking it is the year 2004. It's as if a video can speak for 10 words and then have to breathe deeply before spitting out the next 10 words. Further specifications are Genuine Intel (R) 575@200GH 2.00GHz 32 bit. It is of the Aspire family. The only good thing about it is the 17 inch screen.