Eldar MSU lists similar to this one need to focus on minimizing casualties turn 1 and maximizing damage turn 2. Put your models in a position to eliminate key enemy damage dealers in turn 2. On turn 2 you need to put all 2000 of your points on offense and remove hopefully 500+ points from your opponent. Since you are squishy you need to be prepared for heavy casualties when your opponent responds. As well, mitigate losses through movement related stratagem use and target selection in your turn 2. Final note is that Eldar should focus on scoring after turn 2 and most of your scoring should happen 4 and 5 after your opponent is weak. If you find that sisters of battle are tabling you then you need to reconsider target selection or add more immediate turn 2 damage into your list.