SumatraPDF as an Alternative to Adobe Reader

In one of the PDF documents I've opened using Adobe Reader, I found out that it can use too much CPU cycles when hovered to an image with a tooltip. What happens is that the tooltip keeps blinking, causing the spikes in CPU usage. This however does not happen in SumatraPDF, a light PDF Reader. I find SumatraPDF easy to use, and is simpler when compared to Adobe's. Only the basic functions you need for reading (like search and jump to page) are available so you don't have to deal with many options and buttons that you don't usually need or use.