My house is about 26 years old and the quality of the drywall finishing is poor in many places. Primarily the joint lines are visible in that they stand proud of the wall. In some places the lines are narrow in others several inches wide. I would like to improve these areas but am not sure what joint compound I should use. In my local box store I see two options that I am considering. Both are Synco (CGC) with the first being their Lite Finish and the other being Dust Control (pre-mixed). The Dust Control appeals to me for obvious reasons. Does anyone know if this product will be suitable for my application?

All advise is appreciated.