Improve performance on older machines or add a light version.
On my old laptop (Celeron 1.6, 1.5GB RAM) scrolling is really really painful. It takes ages to load the next article and visualize it. I have tried in both FF and Chrome. In Google reader I have been used to some lag, but very rarely and only when excessive amount of visuals is displayed. They have made it very light and performance is superb. If you fix this, I will switch to using Feedly instead as I like it.