Agree with tepegoz, when I play Vasari I never even research the corvette, dies too easily and cost is too high to build in the first place. IMO, the best corvette is Vespa (Advent Rebel). Its energy disruption reduces average weapon damage and slows down antimatter recovery. In an extended fight where the corvettes tend to die off and fire focus is used early, reducing enemy's weapons fire for multiple enemies is valuable for the early/middle battle scenario.
