How does it run in comparison to Catalina? Does it still have "reduce transparency" option? Catalina works absolutely fine, however I'm somewhat concerned that MBA 2013 is last on the list to receive this update. Therefore one could think Apple is not necessarily designing it to run great on it. On the other hand it's not retina hence less load and better performance than (some) newer machines... Well I'm puzzled. Need some insights from those who tested it 
